Yes it'd be awesome but, we need to remember some points. 1.) Every nid costs the same performance hits to game, as a full player, or at least damn close. 2.) You'd need ALOT more nids than players, which would mean even worse performance than a standard fortress map. 3.) The map would require ALOT of players, only LSM would usually be able to fill these matches. 4.) Nids climb walls, and have other paths they need to use that are predetermined. They'd have to put these things into the entire fortress map piece by piece. The time investment would likely be huge, and glitchy. 5.) Nids would have to have such great numbers...they'd clog themselves up in the chokepoints or around players. Either way, that'd suck. 6.) Nids would have to somehow break gates... 7.) To break the gates they would need new units, and any new nid unit is a pretty big investment for little gain. And the list goes on. At least if the game performance wouldn't take such a massive hit, and if the pathing wasn't so time consuming we could give it a try, but even then you're talking about an uphill battle in a game that...well doesn't produce very consistently. Some smaller game modes, with smaller amounts of players on smaller maps would be nice though.