I liked parts of Invisible War, it wasn't terrible but it was a huge disappointment at the time. I remember hating NG Resonance but I was 13 the first time I played the game so a Britney Spears parody probably came off as extra embarrassing. Completely forget about her tbh. I did like the Omar ending, kind of a "Fuck the entire plot were just doing our own thing" ending which was unusual. Their faction overall was pretty neat, at the very least it didn't feel like a fan-pandering rehash of the original which the Order/NWO/Illuminati shit was. I liked the Templars too for similar reasons, even though they were basically cartoon villains. Probably my favorite thing about the game is that it lets you massacre an entire school of 10 year old girls, which would be totally verboten today. The wonky physics combined with the strength augmentation made it fun as well, pretty much a short-range gravity gun, made up for the retarded universal ammo system.