They're both pretty much exactly the same thing, just swapping Assault and Scout. I hate that the French Legion was given the better skill: Assault, while my beloved British Commandos were left with the much more limited Scout.
I love the idea of this squad, they are VERY powerful, but only against infantry. with an 8!2 rating, those phasers are by far the most reliable instance of this kind of weapon in the game. If you're insanely lucky you could end up rolling 48/1 against an enemy squad. These are certainly the best unit to conduct battles inside buildings.