-ceiling turrets will now be a reoccurring enemy throughout the chapter
-fixed skips that have to do with engies being able to build through metal gates
-added checkpoints to d2_prison_05, d2_prison_06, and d2_prison_07

d2_prison_02

-added a trigger_coop

d2_prison_03

-the antlion guard now has to be killed in order to continue

-added two ammo crates to the antlion guard room

-added some new little music to the antlion guard fight (might remove)

d2_prison_04

-added a trigger_coop

d2_prison_06

-fixed a trigger_coop teleporting all players further back in the map (caused by two lfe_logic_teleports being named the same exact thing)

d2_prison_07

-fixed the beginning door closing in teammates' faces, locking them in spawn

-made the electrified water do a bit more damage

issues: there is a strange occurrence on d2_prison_06 where sometimes the alyx and eli reunion cutscene will break at a certain point. this is inconsistent and sometimes does work, while other times it doesn't. i don't know what is causing this at the very moment