As the topic says.

Just stormed through the security campain on co-op with my second character, with pretty much the same 3-4 players the whole way through. Everyone played as a team and stuck close, everyone buffed/shared/healed.

On the mission where you have to stop the bot and guard the gate controls we all fortified the big circled area outside the gate controls and held it with no probs for 12 mins.

I know its probably happened to everyone but I enjoed it so much I thought I'd share