Level 28 is a level (out of 42) in the Plazma Burst 2 Campaign. In level 28, the Marine finds himself fighting a large Civil Security force consisting of Lites, Heavies and Bosses. The Marine must kill them all to advance through this level. It is relatively short, but it may take a while to defeat all the enemies.
- Civil Security Lite - There are only a few Lites in the map compared to the other enemies. There are 3 Lites in this level. They attack the Marine with PSI Blades at the beginning.
- Civil Security Heavy - The Civil Security garrison in this level consists mostly of the Heavies. Two Heavies are trapped in small pods in a room equipped with the CS-BNG. Because of their high health and stability, these enemies present a great hazard to the Marine. There are 13 Heavies.
- Civil Security Boss - There are more Bosses than Lites but less than Heavies. These enemies represent a serious threat to the Marine because of their high health and firepower. There are 6 Bosses and they are found with the heaviest and most dangerous weaponry.
- It's one of the few levels in which the enemies only use weapons with non-deflectable projectiles.