I think those would be tough. Even the one in IL2 will blow up the engines if you move the throttles too fast unless you have that valve that the Germans modded it with later.
I can't imagine how tough it would be to fly those two especially if they modeled the glass fuel tanks on the 163 and the self detonation they were capable of.
For sure it would be exciting to try.
I think those would be a blast against a mass formation of AI bombers.
Seem like the 163 would be a really easy mod to make. no gear. No engine or propeller.

No complex weaponry or bomb interaction. Just thrust and cannon.
And a random dice roller for random explosions into melting flesh occasionally.
