Tommie emplacements were in pretty good spot, but then they gave that advanced cancer commander.
I tried bofors a few times, but any good player just destroys them instantly, I don't even always get AEC unless the enemy is spamming FHT or Luch. They seem like a nightmare to balance, A little to strong and they break the game, a little to weak and they are useless.
On another note, they are amazing at shooting down planes, especially with vet.