Smoke has no right at all being on rifles again. It's on a minimum of 3 units you are forced to have if you plan on getting tanks which more than accessible enough. If that's not good enough it's also on the t0 mortar. And the m20 as drive by smoke, and the Sherman and the pak howi. Usf doesn't lack for smoke at all and should require combined arms to get out of sticky situations like everyone else does.
echelons have it too (unless they have flamers or, though im not sure on this one, rifle nades)