Stacks
One object, many units — the thing you actually command.
EVERYTHING IS A STACK
A stack is a group of units that moves, fights, and takes orders as one object — even a lone unit is technically a stack of one. Selecting a group of tanks or a fleet of ships means you're commanding the stack, not the units inside it individually.
| STACK TYPE | CAP |
|---|---|
| GROUND | 15 units |
| AIRCRAFT | 15 units |
| HELICOPTERS | 15 units |
| SHIPS | 10 units |
| CARRIER-BASED AIRCRAFT | 15 units |
ONE KIND PER STACK
A unit only ever belongs to a stack of its own kind — no mixing a tank and a fighter jet into one stack. Speed is set by the slowest active unit in the stack; total HP is the sum of everyone inside. The map icon always shows the single most "important" unit — a carrier over its escorts, a bomber over a fighter — even though every unit underneath is still tracked individually.
SPLITTING & MERGING
Splitting peels off any subset into a new stack at the same spot — you can never split everyone off; at least one unit must stay behind. Merging combines two same-kind, same-owner stacks as long as the cap isn't broken; the absorbed stack simply ceases to exist.
RALLYING A FORMATION
One stack is designated an anchor and locked in place; other stacks are ordered to converge on it, auto-merging on arrival. If the anchor is destroyed first, the whole rally is cancelled. If a converging stack is destroyed en route instead, it's just dropped from the order — the rest continue.