Blendkorper + Bundle cheese is pretty dumb honestly, if other factions can't do it I don't think OKW should either.
Stormtroopers can throw smoke and flame nade.
Artillery Officer can smoke arty + Coordinated barrage + Heavy mortar barrage
Obers Blender and bundle is allowed.
Volks assault package replaces flame with HE nade, therefore it is disabled by smoke. In case a rework happens and a commander appears with Infiltration nades and MP40 package, that is not disabled.
IS with Pyro, can throw smoke artillery + artillery barrage and either Nade/Gammon bomb.
Ass IS can incendiary smoke + either Nade/Gammon
Major can smoke nade + artillery call
RET with GL upgrade can smoke + attack ground.
I purposely gave all combinations of smoke + some kind of offensive ability.
I think the only weird one is the Stormtrooper and if people deem incendiary nade + HE nade strong combo, all 3 units should get shared cd.
I don't think there's an issue with officers or pyro. Obviously nothing wrong with RET.