"APU on Vasileks aren't a bad idea, maybe the VDV should start tinkering about it..."
The idea was a weapon that could provide direct fire support while retaining indirect fire capabilities and capable of going where the infantry could go (at least in SPMBT terms).A mule mounted recoilless was a possibility but I preferred the rate of fire and high angle of elevation capability of the Vasilek.
It would also have some antiarmor capabilites with HEAT, although that would be a secondary role.
I am not sure if it will actually work well in battle, I have had the time only for testing the basic mechanics and maybe a few skirmishes, as the rest of the OOB still requires some final checks.
The US Army tested the idea of the Vasilek mounted on a HMMWV, I think more just to see what would happen. Pic. So far nothing's come of it, and I don't think the idea has gone beyond the feasibility stage.