Sub-level 1: 76 Humans, 3 Aliens, 1 Facehugger, 3 Eggs = 83 enemies Sub-level 2: *Work in progress* Sub-level 3: *Work in progress* Sub-level 4: *Work in progress* Sub-level 5: *Work in progress* Alien Ship: *Work in progress* Predator Ship: 10 Humans Predator can't use vents; no enemies.