Artillery infantry platoons are BV cheap without getting into 'big' games. I used the 3 canon Thumper platoons in a 5k force with . . . 2 mechs, a hovertank and 2 BA- so 8 units in 5k. Or maybe it was 2 and I added the 3rd with the next 5k. Thumpers with their single ton of ammo getting you 20 shots was enough . . . though I also used Smoke rounds for one of the guns a couple of times- lol, unfortunately I could NOT get that to land where I need.