Hum i've played only the first 2 games.. as you would expect second is better, so i guess they improve on every new game, as it is n-Space developping them
So start from the last one, Black Ops
Fixed it for you.
Touchscreen games where you need to use d-pad will give you some bad cramp however it seems a lot easier when you play them on the 3DS. As for the games well the first one wasn't really good at all, was like a contract obligation for the team but unlike the console series the DS games got better with each release. n-Space did their best to push for better looks, AI, online and gameplay with each release. It's a shame they're not doing a 3DS game of their own to play with.
QUOTE(Sora de Eclaune @ Aug 28 2011, 06:57 PM) The DS isn't great for FPS games. You'll wear out one of the shoulder buttons.