KG2 "Holzhammer" and KG51 "Eidelweiss" fly together sometimes? No problem so far as I'm concerned. Actually join together? No. We're greedy. We want TWO decent-sized KG's in AH, and I bet our friends in KG51 mean to see that happen just as much as we in KG2 do! :-)
Also, KG2 is a pure bomber unit, focussed on organised games, using the CT as a kind of training ground and not existing in the MA at all. Slightly different to KG51, there.
But we're always happy to fly along with other Axis units now and then... :-)
Hals und beinbruch, KG51!
Esme
Kommodore, Kampfgeschwader 2 "Holzhammer"