Longest cloaker run

[Madcow]

I know we had a post not long ago about people's longest run without dying, so now I'm getting more specific. I had a magical run last night in a high combat area where I went 45 minutes without dying and killed 30+ people (I'm really not sure how many it was). It started with ACEs and consisted of nothing but Spitfires, my knife and eventually a looted Scatter pistol (which is absolutely vicious if you're getting good FPS and have surge). The end of the run came when a sniper heard my surge implant before I'd begun attacking and got the jump on me, but at least I fell to a good man in Jaged.

So let's hear it, cloakers. What kind of long term survival have you enjoyed? That single run last night so eclipses my previous best run (assuming a good amount of combat happening around you) that I'm curious to see what others have done.