cnc - mostly housekeeping adjustments & anims.

Apache gun - +piffs animation. Spread increased 3 -> 6
Napalm damage increased 120 -> 130. Guard tower often survived airstrike, and wasn't supposed to. 
Adv. Tower missile range increased 7 -> 7.5 (wasn't reaching its full range). 
SAMMissile damage adjusted. Can now kill A10 in 3 hits instead of 4.
Guard Tower machine gun - +piffs animation. High=yes (in case it needs to shoot over a wall or building)
Explosion animations renamed: BigFlamer, ArtilleryShell, MachineGun, APCGun(s)
Explosion animations changed: 227mm, Towermissile