Thought's on different artillery shells?

Welp we already had smoke shell ingame. If player want to troll someone they already can. But i’ve not seen that for more than 6 months ago. I’m sure we can introduce some kind of system to not encourage people to do that

To OP
-Cluster round would have some use in damaging tank track , engine / outright killing open top / light AFV
-WP Smoke round for covers.
-Various smoke color round for marking enemy positions
-illumination shells for night battle
All of this should cost SP to use and should have cool down like 2-5 min (depending on shell type). So people can’t spam them.

I’ll say no to guided artillery . Since it could be either be too OP or just point less.