Wow, people honestly think Guards are bad.
I give up.
The economics arent there. For 360 mp and the upkeep/reinforcement/enemy xp value they just arent worth it.
Think about it. Since ptrs are the last models to drop they literally work just like vanilla grens for ai.
Then to add insult to injury you need to spend 100 muni for the first button that is far far to easy to cancel. Then even at full duration with soviet at guns rof thats maybe 1 exrra hit in for 100 muni.
If guards were either cheaper to use ie reinforce/muni for upgrades button was more reliable or they had the exact same impact as the lmg42 they might be good. Now they are a very very expensive and highly situational support unit.
I would even prefer ptrs as a paid upgrade so they at least gun down lmg grens ffs.