OK, I'm usually not one to rage about things. But this colo really needs to be fixed now.
I just had a ranger spawncamping me for an entire round of colo because of the joyful 'feature' that you can keep a target on someone AFTER YOU KILL THEM.
The moment I respawned, I was already down to half HP and sitting on a poison arrow dot. Lest to say, there wasn't a damn thing I could do about it.
So, if ever, you see a full colo geared ranger sitting in the center of the arena spawncamping some poor sod, kill the ever-living out of it.
Also, fix colo. Srsly. This isn't even laughably bad. It's just bad.