Hmm then
Be alarmed if some legio clan players are in your team while others are in the opposite team, they could spawn naked and just suicide/leech/ghost for their clanmates. Happened a few times.
If it's morning (if i play in the morning = i didn't sleep that night) be alarmed about me, stay away from my masterwork nodachi. I usually don't tk but in that case reactions become slower and sometimes i don't stop the swing in times or don't see a mate trying to killwhore right besides me who will intercept a swing and die in place of the enemy (who will be most grateful in that case).
If Bjorsomething uses his alt Pippi, he tends to overrun teammates with his horse several times (like 2 times every round). Stay away from that horse, other than that he's good at killing enemies. Alternatively you can kill the horse and make him rage (or get kicked/banned because of intentional horsekilling, which is a serious crime).
A guy named Linx with 205-250 ping. He will just die, then whine, and will always say he can play perfectly fine with 250 ping, only to complain 5 seconds later about missing manual blocks.
Fallen_sultan_khalifa, he not only overruns teammates but does 2-3 teamkills with his lance every round (not intentional, he just has bad aim).
Many more i can't think about at the moment, mostly throwers/archers who shoot in melee, or cav who tries to bump an enemy but tend to bump you most of the time.