The shit that I've been working on lately, in case you haven't seen me on often lately (well other than the particle system registration bug i have on gclub). Yes, NS2 is a commercial paid game. Search around for keys and you'll probably get them for free, though I personally got the game from Maro, a fellow KoR member (<3). NS2 Combat is a separate game whose developement team doesn't get paid and have been treated like shit from UWE apparently, so don't buy that game, if you want it, well, it's more dead than unvanquished and you can get the keys if you ask politely on their discord.
Anyway back to NS2, I've logged about 500 total hours in this game, 150 of which are developing this so-called 'tremns2' mod, which aims to get the tremulous feeling into their slow-as-shit game (takes like a minute to walk from one side to the other side of the map, and like 3 minutes to destroy the enemy command unit):
The game engine is programmed in lua. There's lots of dodgy shit like declaring a global variable, then defining a local variable as it and then not even adjusting the local variable (pointless memory usage) and other shit. Tremulous source code is much much more neater and logical too. On the plus side, you can (supposidly) edit a source file and see the result in live time, though that isn't really the case since it's quite buggy. However it is true for the spark map editor where lights aren't baked onto the map and are rednered in real time (see most bottom link).
Anyway this is what it looks like, with my newly made knockback function:
Recently sparky and a few others have been poking me to get back on slack so I was like why not, let's just install this shit and:
Unrelated but sort of on topic:
Feel free to boast about this biased google search stats: https://www.reddit.com/r/ns2/comments/5hi4jr/tremulous_vs_natural_selection_2_web_search/
And see how mapping is done on the spark engine - ATCS if you are interested (fuckload of map editor bugs, plz, i gave up on this shit for now): http://steamcommunity.com/sharedfiles/filedetails/?id=810328380