@ETR:
I've been experimenting with the same since I would like to be able to aqcuire targets by either esm or radar without having to surface. I found it impossible to add any more extensible objects, BUT, what I did instead, although it might seem like a bungler method, was to substitute the obs. scope with a radar mast, or more like clone them so that the game thinks that it's hoisting a periscope, but in reality a radar is lifted above the waves. It works, I can use the radar now while submerged at a low depth. As for the radar warning I simply attached the radar warning antenna object to the attack periscope so that this mast now works as both attack periscope and ESM mast. It's simple, it's not professional, but it looks decent and it works
