c1m2: bile, ammo, defib spawn density fix
c2m3: 2 items spawning on the same spot visual fix
c2m5: molo, melee density fix
c3m2: ammo density fix, pistol spawn fix
c4m1: moved few items in 4th chapter saferoom so bots dont take through wall
c4m3: added all the fixes made in c4m2 + removed the prop_physics destroy input on mapspawn (it destroyed all oxygen and propane tanks)
c4m4: added all fixes made in c4m1 + bonus env_soundscape fix on that one house which is loud inside during storm