The problem is evertime I try to swarm my opponent I get my ass handed to me.
I guess it is a very risky and should be just tried for fun/trolling.
They forgot to tell you, that you can only swarm after you baited them in a trap, so for example, 2 grens on retreat, swarm mg42, mortar and pak gun. Thats how it works.
Pgrenz can be good in close combat situations.
222 has it's moments when light vehicles come up , vs stuart or t70 you have to bait them in your pak. With the Pak you kinda gotta wait till you baited him into a teller or into a grenadier and can give him damaged engine