Agreed.As much as appreciate author efforts and work put through
I'm thinking this from CQB perspective.
When you stack up
You don't point your gun on wall but if you are first right in front of you, if you second slightly
right and so on until last men is covering back.
So rather then this transition that can't come so much in effect if you doing CQB I would
rather see for example - high carry - weapon up (used in CQB a lot) or maybe holding
shoulders when you stack up, or coded push/squeezing of 2 soldiers through doorway - collision model maybe...