I was specifically responding to him saying if it's 2 or 3 players. CAS isn't the only doctrine that fine in 1's and 2's but OP in 3's and 4's.
EDIT: But on certain 3's and 4's maps CAS is unusable because the map is so big your strafe's can't hit anything.
Have to disagree, just get the shortest range from the map and it's still 6 secs. If you don't put your attention on your units it will be down quickly. With good micro ofc. you'll save the tanks.