[@Eisenhorn]

Yeah, just in general it makes far more sense to just have the guard be as or more competent than a normal modern army, and yeah it simply makes sense for their to be more than a million marines. 

Though yeah, pretty interesting squad we have:
1 Psyker
1 Heavy
1 Sargent
1 Commissar
and then I think 2 comrades, due to psyker and commissar maybe not getting them.