[RERomine]

I run a 100x100 map with a battalion sized force similar to what you have: 1 armor company, 2 infantry companies and support units which come up around company strength. This still gives me room to maneuver without turning it into a game of blind man's bluff.

Depending on the type of battle, the AI forces seem to be sparse on a Defend and can stretch from top to bottom on an Assault. It really depends on what you want. On a small map with large forces, you end up with a knife fight in a phone booth where brute force is the order of the day. Larger maps with smaller forces give you maneuver room. From a realism perspective, you probably can find examples of both during World War II.