You have to position yourself between the tank and the Valkriya so the shots don't hit you. Basically use the tank as a shield and you'll be good.
---------------------------------<--The drought is over"have fun reveling in your pettiness tho" (C) Dula summing up 98% of OKS"I didnt finish a damn thing...matter of fact I jerked off after she left." -Kobe speaking to investigatorsL D E A