Arrgh! I ALMOST remember this. I recall 'Acker'. Grrrrr... I checked Close Assault, Ambush! a few computer games...
need more info... anything
There IS a counter named 'Acker' in Patrol!
"Acker" means field (agricultural meaning) in German, if this helps in any way... So if this meaning applies to the game, it was probably rather a terrain counter than a unit counter, I guess. Or it is simply a name, in that case, forget about my post!