The most annoying boss

[Human No More]

Barrett is hard...

Spoiler: until... 

...until you work out the pattern he fires in, then throw barrels at him between it. Explosive barrels do some good damage, but I think the gas barrels are actually better, as when they stun him, just fire a clip into his head - you should only need to do this twice. EMP grenades also stun him. Also, make sure you get the stim from the medbay just before you fight him

Still took me quite a few tries though.

[Cyvaris]

Originally Posted by Human No More

Barrett is hard...

Spoiler: until... 

...until you work out the pattern he fires in, then throw barrels at him between it. Explosive barrels do some good damage, but I think the gas barrels are actually better, as when they stun him, just fire a clip into his head - you should only need to do this twice. EMP grenades also stun him. Also, make sure you get the stim from the medbay just before you fight him

Still took me quite a few tries though.

Yeah I figured that all out pretty quick. The real problem I had is this is the first real action game I am playing using a PC. My reflexes are utter garbage. On a console I...probably wouldn't have been much better. I suck at shooters. Oh well the other bosses where much easier.