Me and my two friends, MiNi NiNja0 and jakepdcfc were playing the Strike mission, The Devil's lair (Final mission in the beta) and just beat Spekis Prime. Soon after, jakepdcfc had a network error and disconnected from the game, after this happened, Spekis Prime regenerated, back at full health and pretty much forced us to kill him once again. This wasn't completely frustrating but got quite annoying quickly. We then thought perhaps the cause of the bug was due to the fact, when a player leaves a mission, all the mobs regenerate so that they can then be replayed straight away. However, due to this if a player disconnects at the end, the mobs will then respawn. This should be fixed to stop further problems & frustration in the full game.