Thanks everyone, for the quick and thorough answers!
We felt that abilities that essentially let you 'skip' cooldown timers on your artillery barrages weren't very beneficial to gameplay. Since there is no real retreat in EIR, and units are generally more finite, artillery is a much more delicate matter than it is in vCOH.
Too bad Overwatch/counter is out, I found that overwatch is easy too play around on big maps for human players, since they generally just avoid the area if possible and if you take your piece out of overwatch it gets a cooldown timer.
But I can understand why its not in it could be overpowered, this is probably especially true for counterbattery.
Gotta love that cluster ammo from the overwatch barrage tho
I'l continue my practice with the m95, force ground was the way i played with the StuH in vcoh so I will definetly give it a few more tries.