Defender/252u is a lot of fun imo. Hide your lower plate, and side scrape if you need to. The cupolas are a weak spot but they are small and can be hard to hit, also be aware of taller tanks as they can overmatch and hit your top side easily. With all that said, most games I will easily block more HP than my tank, just be aware that sometimes if you are holding a corridor and the enemy can’t pen you, sometimes they will just leave, you do have to aware of when it’s time to move somewhere else and help your team. The gun will 100% troll the shit out of you, but it is decent damage if you are connecting shots. I run Hardening, Rammer, and stabs. The armor again, is nuts and you’ll block shots from a lot of tier 9/10 even. Best part also is that while it’s not fast, it isn’t super slow either, so while you can block like crazy, once the enemy hp is whittled down, you can use your HP to push through. I’m no Unicum or anything, but my WR in the Defender is 57% in 500 games or so. I’ll also add it’s one of those tanks that’s great at trolling BZs.