any time I get in trouble, I just pop the smoke and start dash-running away, then I have the regen ability on, too, so it doesn't take long for the shields to come back. I try to use structures, too, for flanking, especially when an enemy Titan is engaged with a Titan on my team -- just run around quickly to a side or rear position and the fight is basically won at that point.

A few times I have Titanfall'd (Titanfell?) into the wrong spot and I can lose the Stryder in like 10s against a tough team, tho...

and I think like 79 is my high for Attrition at this point.