Tips for Tanks Bugs
The idea with the tank bugs is that you kite them so that your team-mates can shoot.
If you need to evade it to avoid taking damage or to reposition yourself to keep kiting, strafe left or right as the tank bug *runs in a straight line* and then dive.
If he starts turning as you strafe, move diagonally towards his left or right side and then dive – his turning circle is too wide to catch you.
Bring a Recoilless launcher, drop a resupply or Helldiver reinforce pod on ’em, or use fire which ignores armour. Fire will take a while though.