Are the trees able to be destroyed(or killed) or do they just have a lot of hp?
Of course, I will probably never find out, because I can't hit one several times because eventually I'll be swarmed by a massive mob of enemies.
I once just shot a tree like a LOT of times and it didnt die, might be possible with freeze tho
try getting reaper's round and run around the tree and shoot, i killed several trees with that one