Abilities/Effects

I like the arty that the Coms. can use. I do not, however, like that fact that it is free. I feel that all abilities and effects should either- Remain free with a very high cool down timer, or cost a high amount of resources. For instance- The Guards anti-tank grenade is very powerful, yet has a small cool down compared to that of any other faction's abilities. Thoughs on this? 

Guard's nades badly need to share a cooldown like PE ones do.

Badly. They are simply unstoppable against multiple threat types and completely immune to conventional defences (suppression weapons).

Plox nerf.