I would rather they keep the molotov if the guards keep the grenade, to increase unit diversity.
Anti-garrison for mainline infantry is simply too much utility. Either all faction should have it or non.
May I ask for the reason for a timed hit the dirt than a toggle?
The ability is simply too powerful one can leave his infantry behind heavy cover and forget about or leave them under hmg fire for a very long time. If one makes it timed one can better balance the ability and make it scale with veterancy.
Especially if it turn into stock ability and not doctrinal.
For the guards PTRS upgrade, I would give three PTRS rather than two. This would make them more effective vs vehicles. I would rather like to keep PTRS less potent vs infantry than their SVTs. Instead of a take aim why not a suppressive fire ability? The ammo is 14.5 x 114. This is larger than a .50 cal (12.7 mm)
Again suppression give them too much utility. A timed ability increasing AI is easier to balance.
I do not think a can change point blank. Only say if a weapon has it or not.
Maybe at point blank 1 an point point blank 2. with point blank 1 adding some bonus when in cover?
Another note, imo one should normalize built time, reinforcement time, reinforcement cost for all units according to categories (and maybe subcategories).
Support weapon (slower reinforcement)
Elite
mainline
auxiliary (faster)
Sub
CQC