Everyone hates explosive nadespam. How often do they get used for anything but explosive nadespam? Sure, there are other ways we could address that issue... but ultimately, I don't think explosive grenades actually add that much to the game. TF2 had the right idea here; they're just not very fun. They remove too much of the interaction between players. If you want to hit someone behind cover, the game already has mortars and big tank weapons, and heck, the rifleman is tough enough that he can just dash behind the cover and kill them (only he can't because he'll be running into their nadespam death wave himself, but you get the idea.) Most of the time, in non-infantry or tank maps, Empires generally isn't focused on flushing out infantry anyway -- you don't really need explosive grenades there (and stickies are more valuable.) In infantry maps, or in parts of comm maps where tanks can't reach, explosive grenades are just unfun and encourage boring move-and-you-die scenarios. The slim gameplay benefits they offer aren't worth the headaches. Sure, we could balance around them, but why? Just take them out.