Smoke bombs are useless

The cloud of smoke they produce is tiny, and starts dispersing instantly. No good for producing tactical cover.

They need a significant boost IMO. The cloud of smoke should be around the size of a smoker zombie’s, and hang around for a few minutes at the very least. The grenades don’t just emit a puff of smoke and done after all, they keep burning for a while.

Yes! We definitely need to make smoke grenades and smoke cover tubes more effective, Wikipedia tells me that the M18 Smoke Grenade (The current one in use by the US) lasts for 50-90 seconds.

Size is also something that could be looked at, with medium strength winds they can create a cover of about 10-15m.