I might be little pain in the ass but your PC shows that you haven't played any OKW game recently.
Nor random, nor AT. Just sayin
Leig has instant suppression as well, can wipe squads also very easily, it's cheaper, comes earlier, easier to make 2 of them, higher range andcovered by schwerer + med.
I played a OKW 2v2 on one of my smurfs obviously.
Leig is balanced though since OKW doesn't have a very good core Army that can stand up to the other factions, and the suppression is lesser than the Pack artillery one, so if anything the Leig needs a few buffs unless Relic plans on giving buffs for Volks Grenadiers, Obersoldatens and MG34's. USF core army is already better than OKW, so when a USF player gets out a Pack artillery unit ore two on top of their core army, it's simply not balanced. Why should USF get both a strong core army AND the best support weapons in the game?