Ah didn't know I can delete my own stuff, thanks.
Nonetheless, I like the idea of a doctrinal defensive structure, but if it is intended to be the other factions' equivalent, then the cost should at least be somewhere close; and the pop cost isn't justified anyway - USSR is a pop intensive faction, and other MG buildings don't cost pop at all (I only have the original CoH, not sure about the British). Besides, all USSR players (especially those aren't going Propaganda) will have 6 pop (the 2 starting MG dugout) occupied at all times, unless you delete them of course.
P.S. Since it is a doctrinal building, maybe a little more attention? For example some upgrades or attributes to make it unique? If that is the case the cost at this stage would be well justified.