The rest of the tank destroyers?
Tank destroyers in coh2 (non doctrinal)
- su85 hp: 640 (takes 4 shots from most at sources), same armour as stug
- jp4: hp: 640 (takes 4 shots from most at sources), better armour than stug
- stug: hp: 560 (takes 4 shots from most at sources)
- jackson: hp: 480 (takes 3 shots from most at sources), worse armour than stug
These all are glass cannons following this line of logic.
The only tank destroyer and anything but "the rest of the TDs" to be less of a glass cannon is the panther
The SU-85 doesn't need to engage in 50 range and can sight for itself, the JPIV can cloak while having the smallest target size of any vehicle in the game. I compared the StuG III to the Jackson for a reason; they both have very similar armor (one it 140 one is 130).
The Jackson has a turret and superior mobility (60 range as well) to the StuG but less health, really it's a toss up between the two which is more glass and more cannon since one has high alpha and one has very good DPS. But both are meant to be supported by other things and are hard countered by AT guns.
The short gun sherman isn't a class cannon because it's got a turret, very good speed and acceleration and smoke. The T34/76 is just well, uh, not very good lol.