Mission: Possible But Not Probable
There are 4 npcs in this quest that should take additional damage from certain abilities, which makes the quest relatively easy to complete as a level 20. Without this additional damage, the quest becomes very difficult to solo.
1) Mutated Venture Co. Drone - Should take additional damage from ambush.
2) Venture Co. Lookout - Should take additional damage from eviscerate (turns into a weak slime).
3) Venture Co. Patroller - Should take additional damage from rupture (lung puncture debuff).
4) Grand Foreman Puzik Gallywix - Should take additional damage from ambush.
I can't speak to whether or not the alliance quest works as it should, maybe someone else can comment to that.