Admittedly I thought it sounded like an awful idea at first, but after playing some games, I must say that Instagib is really quite a lot of fun. I think supertanker's map is great for it, too. I can't wait to get the chance to play the mod with that map and a good number of players.
It's really great how there's suddenly a rash of gametypes for Trem. Risujin gave us Dom and Relics back in the day, but now suddenly we're seeing working mods for Deathmatch and Instagib, while there're others working to bring us Tower Defense, and people have been trying to do Assault-type maps for a long time. Really it's all gotten me quite excited too and I got unlazy enough to code my own new gametype mod, premiering very soon (Look forward to it: no details until then

).
Hats-off to everyone who's bringing us new and fun ways to enjoy Tremulous. New gametype mods are infinitely more interesting than admin-abuse and messed-up-balance "mods." Let us hope to see this great surge of creativity continue and enjoy its fruits.