so what exactly does emp do?

[MrMorton]

reading about the emp grenade specifically, it says it depletes shields and decloaks infiltrators.

I assume that the HA's shield is included in "shields", but I cannot think of anything else they have mentioned as using shields.

if so, that means in the current state the emp grenade is extremely situational in its use and also means it is more useful in a defensive sense than an offensive sense (defend against shielded HA crashes and inf captures) which kind of goes against the infiltrator's mantra.

It also (in the current e3 state only of course) leaves the infiltrator very limited explosive-wise, as It only has one explosive weapon that can actually do damage to anything, the claymore.

so, is there anything else the emp does, and are there plans to increase the infiltrator's explosive armory?