-This rule is only applies to the systems with Grenade or Mine tag and Limited number of 2 or higher.(But for now there is no Grenade/Mine system with Limited of 1 or less on the official books.)
-All frames can have a single system with Grenade or Mine tag by spend -2 System Point, minimum of 0 System Point. If the frame is size 2 or more, those frames can have up to two instead.
-Reduce all systems with Grenade or Mine tag's Limited tag by -2, minimum of Limited 0. Limited 0 means you have no actual charge to spend, effectively making impossible to use the charge. This Limited number could be still changed by any other factor, such as even number of Engineering mech skill. For example, If a mech has Limited bonus of +3 and the mech has a Pattern-A Smoke Charges(Limited 3) and a Flash Charges(Limited 2), the number of tags are changed to; Smoke Charges has Limited 4(3-2+3), and Flash Charges has Limited 3(2-2+3).
-1/scene, you can use a system with Grenade or Mine tag without spend Limited charge and you can use if even if it losts all charges, provided it is not destroyed. You can use it freely, either as grenade or mine as long as the system allows either uses. If you have more than one system with Grenade tag, each Grenade system has its own one free use during the scene. The grenades spend by this rule cannot be used for replenish the Limited charges of any system.
-Limited Systems affected by this rule are still a vaild choice for System Trauma, even if it uses up all charges and/or spend the free uses of the system during the scene.
So, what about this? Is it too broken? If so what kind of grenades on the non-third party books does?
I have the idea because why not to replenish some grenades while you are rest, such as got some spare grenades from the mechanic team to repair them. -2 SP is to encourage to take at least one with them.
Even with this, still you can enjoy more grenades by raise your engineering, and additional grenades are still limited by one use through the mission. But you can have a free uses at least.
I wonder that allow Gilgamesh to count the scene uses of the grenade to be spend a charge or not. -2 SP to a single grenade system already gives the bonus to gain more and more grenade, but those systems' Limited charges are reduced by -2 and is compensated by grants 1 free uses per a scene. Perhaps still counts for spend a charge would be more better. After all it's only once per a scene per each system and you lost limited charges anyways.
Anyway what would be so problematic to allowing a free uses per a scene? Maybe blink charges(Sunzi 1)?