HOI4 Soviet Union Guide 2026: Focus Order and Research Order

🎯 The core idea

Two things carry a Soviet run, and neither of them is a navy. The first is hitting the focus and research order in the right sequence, because the Soviet tree hands you industry and research slots that compound if taken early and are nearly worthless if taken late. The second is arriving at June 1941 with an army that was already trained in Spain.

This page is the reusable half: the exact 44-focus order, the research order slot by slot, and every tank and plane design decoded to components. It is the part you want open on a second monitor. The play-by-play — how the front is actually held when Barbarossa lands — lives in the video, and every section below links to the second it starts.

How the video is laid out

Note the proportions. Setup and Spain take four minutes; the middle of the run takes twenty-eight. Barbarossa itself gets eight. That shape is the actual lesson: the war against Germany is decided long before it starts.

How to play the Soviet Union in HOI4

If you have never taken the USSR past 1941, the short version is this: the Soviet Union is not a hard country to play, it is a slow country to prepare. You start with more manpower and more states than anyone else on the map, and with three national spirits that quietly tax all of it. Everything in this HOI4 Soviet Union guide for 2026 — the focus order, the research order, the designs — is aimed at one date, and the tree gives you five years to reach it in a usable state.

That is what a HOI4 USSR focus tree guide has to say before it lists anything, because it explains why the order matters more than the picks. The Soviet start looks like this:

Read the middle row twice. −15% division organisation is the reason a Soviet line breaks where a German one holds, and no amount of manpower fixes it — organisation is what a division spends to stay in a battle rather than fall out of it. It is also why the run below is built around a line that stands still and equipment that supports it, rather than an early offensive.

1. National focus order

All 44, in order. Numbering is automatic — tick them off as you play.

The tree at 1:03, before anything is picked. 1:03

1. Heavy Industry
2. The Path of Marxism–Leninism
3. The Centre
4. Stalin Constitution
5. The Zinovievite Terrorist Centre
6. Expand the Agitprop
7. Komsomol
8. The Comintern
9. Send Military Advisors to Spainthis is what makes the Spanish Civil War section possible
10. Trotskyite Centre
11. Workers' Dictatorship
12. Infrastructure Effort
13. Five Year Plan
14. Military Conspiracy

1. Tankograd
2. Merge Tank and Materiel Plants

1. Positive Heroism
2. People's Commissariat of Mortar Armament
3. Experts in Camouflage
4. Desperate Measures

The order above is transcribed from the author's own published order sheet. The middle of the list — the focuses between Military Conspiracy and Tankograd, and between Merge Tank and Materiel Plants and Positive Heroism — is in the same document; open it alongside this page and follow it line by line rather than reconstructing it from the video.

The Soviet focus order, branch by branch

The list above is a click order. This is what it is buying, so that you can rebuild the sequence yourself when a patch moves something.

• The industrial trunk. Infrastructure Effort, Heavy Industry, Finish the Five Year Plan, Improve Railway Network. Building slots and civilian factories dropped into random owned states, railways and supply hubs laid where the game decides you need them, and the political advisor Lazar Kaganovich off the back of finishing the plan. The value of every one of these is measured in months of compounding, which is the whole argument for taking them before anything with a gun in it.
• The political trunk. The Path of Marxism–Leninism opens it and is worth taking for the paranoia reduction alone. From there the tree forks: The Centre keeps Stalin and leads into the purge line, while The Left Opposition starts the process toward a Soviet civil war instead. The order sheet on this page takes The Centre every time.
• The purge line. Several of the focuses listed above each start a Great Purge that cannot be declined, and parts of that chain are gated behind waits of 175 days. That is the real reason this order is a schedule rather than a preference — the purge section further down works through what each one costs.
• Research and army. The USSR Academy of Sciences is where the tree's research slot comes from, and the army focuses are what work off the worst of The Red Army spirit. Both sit late because both are cheap to delay by a few months and expensive to take instead of a factory in 1936.

2. Research order

The Soviet opening is not "research good things" — it is a specific sequence of switching research slots, because you are exploiting the discount that builds up on a slot left alone.

1. Switch Engineering to Machine Tools
2. Add Engineering with the third research slot
3. Switch Construction to Electronics II
4. Switch the third research slot to Construction I
5. Concentrated Industry I

That pattern — start something, switch off it, come back for the discount — continues for roughly fifty entries. Follow the order rather than the slot numbers, exactly as with any other research order: how many slots you have open changes which slot each item lands in, but not the sequence.

3. Designs

Every tank design uses the OKMO design company. Every plane design uses the MiG design bureau. No exceptions across all seven.

Where those picks are made — the MIO screen at 2:27, here with Tula Arms Plant open. 2:27

Tanks

23:42 — LT-Convert A-1 on the improved light tank chassis. 23:42

22:39 — SPArty-Convert on the basic medium SP artillery chassis. 22:39

26:36 — the first flame tank, before the upgrade. 26:36

33:30 — the same chassis as FT-Full, with the later modules on it. 33:30

The naming tells you the plan: "Convert" designs are cheap variants meant to be built early and converted or upgraded later, while FT-Full is the version you actually want once radio III and armour skirts are available. The light tank is a support and screening chassis carrying a machine gun rather than a gun — it is not there to fight tanks.

Planes

The CAS design is named defensive for a reason — it exists to break attacks on your line, not to support offensives. That fits the shape of the run.

23:51 — LBSh on the basic close air support airframe. 23:51

27:27 — the Il-2T, the improved CAS airframe. 27:27

Turning the designs into Soviet tank production

A design is only half of it. HOI4 Soviet Union tank production comes down to three things — which organisation builds it, how long the line runs untouched, and how often the design on it changes — and the Soviet start makes the third one unusually expensive.

Look again at the Five Year Plan spirit in the table near the top: +5% production efficiency cap and −15% production efficiency growth. Soviet lines end up slightly better than average and take noticeably longer to get there. A country holding that pair should choose a design and then leave the line alone, which is exactly what the "Convert" naming above is for — cheap early variants meant to be upgraded on the line that is already running rather than replaced by a fresh one at zero efficiency.

The organisation half compounds the same way. A military industrial organisation earns funds from the equipment it is assigned to build and from finishing related research, and every size step it gains buys a trait point to spend. Putting every tank design on OKMO and every plane design on the MiG bureau — which is what the order sheet does, without a single exception across all seven — is not a stylistic choice. It is the difference between one designer with a full trait tree by 1941 and three designers with a third of one each.

4. The Spanish Civil War

The focus Send Military Advisors to Spain sits ninth in the order, well before anything military matters at home, and the video gives Spain its own chapter starting at 6:02.

The reason is the same reason every major does it: Spain is a free training ground years before it counts. Volunteers earn army experience — which is what pays for the template edits above — and generals sent there grind traits and levels against a real opponent while the rest of the world is still at peace. You arrive at 1941 with commanders who already have their bonuses.

5. Barbarossa

What the order sheet builds toward: one army of 86 rifle divisions, February 1940. 24:57

June 1941 near Białystok, right as Barbarossa opens. 34:25

Everything above is preparation for the chapter starting at 34:22, which is where the actual defence and counter-attack are played out.

The video covers beating Germany in both singleplayer and multiplayer — which is why the research fork above exists, and why the templates are built around holding a line rather than racing east. Watch the chapter for the front-line handling; the order sheet on this page is what gets you there in a state to hold it.

The Great Purge in HOI4: what it costs and what it buys

Several focuses in the order above start a Great Purge, and new players route around them because losing generals sounds like an obvious mistake. It is not optional and it is not a mistake — on the Stalin path the purges are the political line, and skipping them means skipping the branch they sit on.

The machinery underneath is a hidden paranoia meter, 0 to 100, that runs for as long as Stalin leads the country. It rises every week from whatever modifiers are active — chiefly Stalin's own paranoid trait and whoever is currently head of the NKVD — and where it sits decides what happens to your roster of characters:

A purge takes characters rather than divisions: generals, admirals, advisors and theorists. After any purge there is a 15-day cooldown before another can fire. Left alone, the meter climbs on its own and keeps helping itself to your officer corps for the rest of the game.

The four scripted purges on the Stalin path

Four focuses each start a Great Purge that cannot be avoided or declined. They are listed here under the names the focus tree itself uses:

That last row is the point of the whole sequence, and it is what a HOI4 Stalin path guide has to get across: the purges are how you switch the purge system off. Until The Bloc of Rights and Trotskyites lands, paranoia keeps climbing and keeps taking characters at random; once it does, Stalin loses the trait, the meter stops mattering, and the generals you promote from then on stay promoted.

The 175-day gates are also why the order on this page is a schedule and not a preference. Start the chain late and you are still trading away commanders in 1941, in the same months you need them levelling on a front.

The Five Year Plans, and what each one changes

The Soviet Union does not begin a Five Year Plan in 1936 — it is already inside one. Five Year Plan is a national spirit sitting on the country from the first day, and the industrial branch never removes it. It rewrites it.

That changes how the focuses read. You are not deciding whether to industrialise; you are deciding how quickly the modifier attached to all of your industry improves. The spirit starts at:

• +10% consumer goods factories factor — a slice of your civilian industry is spoken for before you build a thing
• +5% production efficiency cap — your lines top out a little higher than most
• −15% production efficiency growth — and they take noticeably longer to get there
• +5% civilian factory construction speed

Three focuses in the industrial branch act on it directly:

Read the two later plans as a pair. Third Five Year Plan buys back a third of the efficiency growth penalty and makes industrial concerns cheaper, at the cost of another point of consumer goods; Fourth Five Year Plan hands that point back and raises the ceiling again. Neither of them is a factory, and that is the trap in them — they are multipliers on everything your factories do afterwards, so they are worth a great deal in 1937 and close to nothing in 1941 when the lines are already sitting at their cap.

Two other focuses on the same branch pay out the same way and are just as easy to leave too late. Improve Railway Network lays railways and supply hubs you would otherwise be building by hand, and it turns up again in the Barbarossa section below. The USSR Academy of Sciences is where the tree's research slot comes from, and a research slot is worth what it compounds — which is a function of how many years it has left to run.

The best Soviet Union templates for holding a line

The order sheet above talks about template edits without printing one, so here is the frame those edits sit in. Every division in the game is up to five combat regiments of up to five battalions each, plus five support companies — so a template is really two decisions, and for the Soviet Union the second one carries more weight than usual.

The reason is a national spirit from the table at the top of this page. The Red Army costs 15% of division organisation and adds 25% to experienced soldier losses. A Soviet division built from the same battalions as a German one holds a battle for less time and pays more manpower for it, and the support slots are where some of that is bought back.

A reasonable order to make the edits in, once army experience starts arriving from Spain:

1. Engineer Company into every line divisionentrenchment — the cheapest thing on this list and the one the Soviet plan leans on hardest
2. Support Artillery once the supporting technology is insoft attack without the combat width
3. Signal Companymultiplayer only — see the fork in the research order above
4. Logistics Company on whatever is stacked deepestsupply, not combat stats
5. Maintenance Company on anything with a tank in itreliability, so attrition stops eating the expensive equipment

Two numbers decide the rest of it. Every point of entrenchment a division has built is +2% for the defender — a division that has held a province for weeks is a materially different unit from the same template that arrived yesterday, and the Engineer Company is what makes that climb faster. And combat width is set by the terrain the battle is fought in, with a penalty of −1% for every percent you exceed it, up to −33%. There is no single perfect width for that reason: what there is, is a small set of templates you keep — one shaped for the terrain you expect to defend, and a heavier one for the counter-attack.

Barbarossa defence: the mechanics that hold the 1941 line

Section 5 above points at the video for the play-by-play, and that is genuinely the right place to watch it happen. What is worth writing down instead is the set of numbers the play-by-play is exploiting, because those do not change between runs — and they are what turns the USSR against Germany in 1941 from a coin flip into a schedule.

Terrain does most of the work. An attacker crossing a river takes −30% or −60% to attack and breakthrough depending on the size of the river, and rough terrain costs an attacker up to −50%. The Soviet Union has more of both than anybody, and the most useful habit when the front opens is to stop asking where you can hold and start asking which rivers and which forests you can hold behind.

Entrenchment is the reward for deciding early. Each point a division has built is worth +2% to the defender, and it accrues faster with an Engineer Company in the template. That is the argument against a restless defence in the opening weeks: a line that keeps shuffling is a line that keeps resetting the one modifier it holds an advantage in.

Supply is a weapon and it points east. A supply hub is fed through the rail network from your capital — a level one railway gives that hub a base 15 supply throughput, rising 5 per additional railway level, to a maximum of 35 — and hubs are unmotorised by default, with motorisation costing 40 or 80 trucks depending on the level. Every province Germany takes is a province further from its own hubs and closer to yours. That is what makes Improve Railway Network, taken five years earlier, a Barbarossa focus wearing an industry focus's clothes.

And do not overstack. Combat width is terrain-dependent and exceeding it costs −1% per percent over, capped at −33%. Throwing everything in the theatre at one province is the most common way a defence that should have held gets ground down instead.

So the answer to how you defend against Barbarossa is not a trick played on the day. It is arriving in June 1941 with divisions already dug in on ground that punishes the attacker, behind a rail network that supplies them and does not supply him, with commanders who earned their traits in Spain five years earlier — every part of which is decided by the order sheet at the top of this page.

Where to go next

This page is the order sheet: what to click, and in what sequence. For the campaign built around it — the Political Paranoia purges that decide which generals survive to 1941, the industry that pays for the army, and the encirclement tactics that break Barbarossa — see the full Soviet Union walkthrough. The Germany focus order is the other half of that war, and the defensive templates guide covers the divisions that have to hold the line while the focuses tick over.

Sources

• "The Ultimate HoI4 Soviet Union Guide | 2026" — VijoPlays, YouTube, 22 July 2026 (42:15).
• The focus order, research order and all seven designs come from the author's own published order sheet, linked from the video description — not from the narration. Design loadouts above are decoded from the export strings in that document, so component names match what the game will show you.
• Two further documents are linked from that sheet — a doctrines and construction-tech spreadsheet, and a separate designs document. Neither is reproduced here.
• An unedited full VOD of the run is also linked from the description for anyone who wants the unabridged version.

This page deliberately covers the order sheet rather than the play-by-play: the sequencing is what transfers between runs, while the front-line handling is easier to watch than to read. Chapter links above jump straight to the relevant part of the video.