The CTF will be cool, but it will take away the 'shooter' theme of this game.
And, what you mean by Multiplayer zombies? Aren't zombies suppose to be simply bots? Like in other games.
I once thought of suggesting to add 'bots' as an option to play with and earn xp (people wouldn't play otherwise lol) but that 'earning xp' might make it to get abused easily, as I know, some players have a sharp thinking to devise a way of farming xp through it. Also, I'm not sure if its easily effective to add bots in game, but I hope it's not a tough work. Zero's game ArcaneOps have/had (I'm not sure if it's still there) a creepy bot that used to roam around in map and whenever it finds you, it run ups straight to you, push you through the wall, and start damaging your character (which looked like if it's raping you in corner lol).
Anyways, regarding the WebGL issue, you can apparently disregard it for instance, as Standalone version is out, so browser version will not be receiving any updates, rather, the standalone version will be the site of focus from now on. And as for knowledge, standalone version is much stable to handle more features than the browser versions.
