No, they should appear without the M5, and should buy Thompson and Bazooka - this is the Lend-Lease commander.
I've been thinking this since they came out, Assault Guards need to have Thompsons Submachine Guns! Give them 3-4 Thompsons, as the Thompson is the strongest SMG in the game so 6 may be a bit much. The rest of the squad can come with SVT rifles.