Killed my first Regen Yesterday.
No way near as scary as everyone makes it out to be.
Just stood in the corner and fired away with mai shot gun =)
then, i proceeded to run outside and kill the other two regens.
Only 3 or 4 shot gun blasts to get them on the floor and do some damage to their body and stuff, then i knifed the leaving hell out of them.
Also, the oven man was no where near as bad as everyone says lol.
10 - Supply Depot (1)
13 - Barracks
15 - Marine (1)
16 - Orbital Command + Supply Depot (2)
16 @100% Marine (1) - Command Center (2)
21 - Bunker (1) + Barracks (2) (3)