The most efficient method for troop recovery, power growth, and VS Day event scoring
Instead of training troops directly at your highest tier (expensive, slow, one-time points), you train cheap low-tier troops in ALL barracks during the week, then cascade them up through progressively higher-level barracks on event day. Each promotion earns event points separately — giving you 4–5x the points compared to direct high-tier training.
Keep your 4 barracks at different levels to create a "promotion ladder." Each barracks level unlocks a troop tier. A barracks can promote troops from any lower tier up to its max tier, so different levels = different promotion stops in the cascade. Do NOT upgrade all barracks equally — this breaks the waterfall.
Barracks at levels 17-20-24-27. Train T6 all week, then promote through each stop on VS Day:
Compare: training 1 troop directly to T9 = ~220 points. Using the waterfall (T6→T7→T8→T9), the same troop earns points at each promotion step, totaling ~880+ points. That's 4x the score from the same single soldier.
Both actions earn the same event points per unit. On VS Day you have roughly 8 hours to score. Training one fresh batch from scratch might take all day — promoting your stockpile through 4 tiers can happen in that same window, earning 4 batches' worth of points before the event closes.
If you're on Rung 4 (barracks 17-20-24-27), train T6 troops in all 4 barracks simultaneously. This is fast and cheap. Let troops accumulate — you need 20,000–30,000 stockpiled for a big VS Day push.
Step 1: Promote troops in your HIGHEST barracks first (L27 promotes T6→T9). Use training speedups.
Step 2: Move down — next barracks (L24) promotes T6→T8.
Step 3: Continue down the ladder (L20 promotes T6→T7, L17 keeps training T6).
Step 4: As each barracks finishes, it frees up troops to flow up the chain again.
Each promotion step earns separate event points. With 25,000 troops cascading through 4 tiers, you're looking at massive point totals.
Each "rung" is a stable barracks configuration that maintains a 4-tier waterfall. As your HQ progresses, you advance through rungs.
| Rung | Barracks setup | Train tier | Waterfall | HQ range |
|---|---|---|---|---|
| 1 | 6 – 10 – 14 – 17 | T3 | T3→T4→T5→T6 | HQ 17–18 |
| 2 | 10 – 14 – 17 – 20 | T4 | T4→T5→T6→T7 | HQ 20 |
| 3 | 14 – 17 – 20 – 24 | T5 | T5→T6→T7→T8 | HQ 24 |
| 4 | 17 – 20 – 24 – 27 | T6 | T6→T7→T8→T9 | HQ 27 |
| 5 | 20 – 24 – 27 – 30 | T7 | T7→T8→T9→T10 | HQ 30 |
Only target these levels when upgrading barracks. Each one unlocks a new troop tier.
That's it. No complex planning. Identify your lowest barracks → find the next milepost above your highest barracks → upgrade toward that target. When complete, repeat with the new lowest. The system self-corrects from any starting position.
Even if your barracks are at weird levels (like 11-16-19-21 from random early-game upgrades), just follow the rule. Your lowest barracks is always far below your HQ, meaning early levels upgrade fast (1–2 days each). Over 2–4 months of chasing, your barracks naturally converge toward ideal rung spacing. You can't permanently screw this up.
Drill Grounds determine max troop capacity. If they're full, ALL barracks training stops. You need at least 70,000–150,000 capacity depending on your rung. Upgrade Drill Grounds proactively — don't let this sneak up on you during VS week.
If you've already leveled all barracks to L30, you can't create the cascade anymore. You'll use direct T10 training instead (still viable, just less point-efficient). If your barracks are uneven, that's actually GOOD — just follow the rung racing rule to optimize from wherever you are.
Builder 1: Always on HQ chain (HQ → required buildings → next HQ).
Builder 2: Dedicated to barracks rung racing (upgrade lowest → next milepost).
Builder 3: Drill Grounds, hospitals, secondary buildings.
Builder 4: Flex — whatever needs catching up.
Barracks rung racing never blocks HQ progression. They "race" each other — your barracks chase the milepost target but pause at your HQ cap until HQ progresses, then resume. Neither is ever fully ahead or behind.
Destroys the waterfall chain. You want staggered levels, not matching ones.
Slow, expensive, and earns minimal event points. Always train low and promote high.
If you can't stockpile 20,000+ troops, your VS Day cascade will be tiny. Check capacity weekly.
Never waste promotions when there's no event running. Hoard the low-tier troops and only cascade during VS Day 5 or Arms Race Unit Progression.