The MFTS helicopters are HT variants, not M, for obvious reasons.
Were they M series....and thus able to have ready made systems hung on them....that would facilitate their use as Attack Trainers as well as allow them to be used as Fillers should hostilities ever break out where a full. mobilization would be required.
That was the argument against the Lakota being just an Civilian Helicopter in Army Green paint pretty much.
The promise was they were never be deployed to a combat theater for t hat reason.
The Army has purchased a dozen or so of the UH-72B's....with plans to buy up to 450+ of them.
The Fleet has accomplished just over One Million flight hours since being fielded in 2006.