mvm_security a11

Updated game logic. Should be more efficient and less glitchy

a2
Added glass around hatch area
Reorganized area around the hatch to allow easier defense
Rerouted top spawn into the hatch building
Fixed Mission bots going for the flag

Changed prefix from def_ to mvm
Packed custom mvm_level_sounds_tweaked.txt
Removed def_frame_a1a_level_sounds.txt