Object 260 personal mission help

TWOBAUS4U, on Jan 14 2022 - 01:13, said: Edit: TLDR reasons   I am struggling with these last 3. Any tips would be much appreciated.    TD-2 - Have tried with t110e3 and obj 268v4 both running deadeye and still can't reliably get the crits. Will one of the FVs be able to do the crits with the HE changes? (5k damage and 3 crits) TD-8 - Trying with the hellcat. This one is probably just luck.  (5x HP in damage) SPG-12 - Higher or Lower tiers for this one? The stun requirement makes me think of higher tiers, but the longer reload might make me miss out on enemies that I can stun for the team to clean up.  (160-sec stun and allies destroy 3 stunned or tracked)   Big thanks to those who can help me finally complete this half a decade long journey.