Cleanup flipper and add sanity checks
Cleanup floater and add sanity checks
Cleanup flyer and add sanity checks
Cleanup gladiator and add sanity checks
Cleanup gunner and add sanity checks
Cleanup hover and add sanity checks
Cleanup infantry and add sanity checks
Cleanup insane and add sanity checks
Cleanup medic and add sanity checks
Cleanup move.c and add sanity checks
Cleanup player animations
Cleanup mutant and add sanity checks
Cleanup parasite and add sanity checks