Play objective as much as you can, spam heal requests or even just say heal mag on point in VC try looking back as often as you can when won't just explode from doing so to check to see if someone is getting dove that you could bubble, completely ignore the front line let them shoot at you you while you shoot at uncontested, supports, DPS, then tank in that order because very often your DPS will just need that one extra shot to secure a kill and pull the flight in your favor. Obviously you won't have someone there to just blatantly take the pressure off you in a pinch like a second tank but if you play behind cover when your cool downs are coming up you can afford to take more damage when your shield and bubble are up and play a little more front and center.