with a siren and someone else this is easy with Res. Stand at the entrance and shoot while the siren sits behind the door out of fire and just uses Res when needed.
I can help you do this if you wish. got a 100 or so orange/pink guns and mods you may need to help with this.
GT: Evil Apex
WTB - Cocker, Mag, Phantom, QLoader Parts
..... oh God...."
pghp8ntballer: "Cause you know, first strike and flatline systems together with a scope allow you to shoot into the future."