Hmm. I tried a bunch of the other games on the developer's gamejolt page - some of them almost feel as if they're based on other flash games, but there are two of them (Special Trooper Forces and Warflash) that are actually based on Quake. As in, you can still pull down the console, type Impulse 9, and get access to the registered Quake weapons, even though the developer "disabled" the console by - get this - completely blanking out the console font and menu graphics. Talk about your hamfisted development practices...
I didn't bother cleaning them out since the pak format is a lot less convenient for that than the wad format (e.g., textures are squirreled away inside the bsp). So any automated clean-up would have been partial at best.
These games are very interesting. He might not be very creative as far as gameplay and overall theme, (all of his games are military-influenced) but he's definitely ambitious, if nothing else.
I honestly think this guy is trying to make his own games without actually having to work hard at coding an actual game. (Which explains why he makes them in Flash instead of releasing them as mods for existing games.) Unfortunately, thanks to the limitations of Flash, the two above mentioned games lag so much that they almost arent worth playing past level 3. And the lack of a proper mouselook doesn't help much, either.