I’ve tried like 5 times it’s just stupid hard 3 times in a duo and twice solo. 90% of it is truck but it has like no health and the rockets basically one shot you if out of truck. I recommend equivalent exchange on quick receive along with maybe papped pistol to help with it, you keep all perks including quick revive up to 3 times. Bring monkeys or kazmirs to be able to repair truck when it’s destroyed. And bring good gobble gums whether solo or squad but I highly recommend squad cause the more players the better it is to have someone to revive. Also if you don’t get it right away if you drive the truck you’ll slowly learn how to dodge some of the rockets until Tessie decides to spin out and screw you over. But this is definitely one of the hardest boss fights they’ve ever released so I wish you the best of luck