Keep weapon modes and target roles consistent

Inspect both unit and turret permissions

attack defines targets the vehicle can consider and turret_main can further restrict the weapon, the anti-air variant changes both layers so they agree

[attack]
canAttack: true
canAttackFlyingUnits: true
canAttackLandUnits: false
canAttackUnderwaterUnits: false

[turret_main]
canAttackFlyingUnits: true
canAttackLandUnits: false
canAttackUnderwaterUnits: false

Choose a projectile from remembered state

Normal and focused shots use the same gun, altProjectileCondition reads the mode and selects focused when true, otherwise normal, this fits changes that need a new projectile without duplicating the gun

[turret_main]
x: 0
y: 0
projectile: normal
altProjectile: focused
altProjectileCondition: memory.focused

[projectile_normal]
directDamage: 20
life: 1.8s
speed: 4

[projectile_focused]
directDamage: 34
life: 1.8s
speed: 5

Pair the benefit with a cost

Stabilization raises damage while reducing movement speed, cruise restores both state and speed, isLocked informs the player and requireConditional checks the state again when the action executes

[action_focus]
text: 稳定射击 / Stabilize
buildSpeed: 0
isLocked: if memory.focused
requireConditional: if not memory.focused
setUnitMemory: focused=true
setUnitStats: movespeed=0.35

[action_cruise]
text: 恢复巡航 / Resume cruise
buildSpeed: 0
isLocked: if not memory.focused
requireConditional: if memory.focused
setUnitMemory: focused=false
setUnitStats: movespeed=0.85

Compare projectiles before judging the whole unit

Compare both modes at the same distance against the same target, then inspect movement speed and finally use the anti-air variant against an air target, keep other conditions stable when comparing