I recently confirmed that the T59 rocket was delivered to the developers, but the problem is that this is an early model.
In fact, the T59E3 was also developed, and its average pen is 10 inches.
10 inches is about 254 mm, right.
In the game, I think 230~240mm would be fine.
Could send this material to the developer as well? @Euthymia07-live
edit. Ah, now that I think about it, it would be better to release it as the BR5 with the same 254mm penetration.
Come to think of it, it seems very difficult to pierce the Perdinand and Ho-Ri head-on with 240mm.