Smoking

[Pfor]

I had need of a large smokescreen the other day, and so turned to one of my M270 MRLS (USA OOB12 Unit 159). I turned off one slot, thinking that 6 CM rockets should give some good coverage.

I got 4 widely spaced smoke hexes - a very sparse smokescreen indeed! I deduced that currently a 'smoke' rocket has no sub-munitions and resolved (a) not to 'permit' my class 14 weapons to waste turns firing smoke and/or (b) not to 'permit' my class 31/151 units to waste turns firing smoke.

Does anyone happen to know what real life CM smoke can do?
- For example, can it obscure the entire area that the corresponding CM HE rockets cover?
- Are the chemical effects (WP) bad enough to cause damage to structures and casualties to vulnerable units?

Thanks