I hate them. They are to the detriment of BF3.
- The mortars are unfun to use and counter and they fuck up nice tactical streetfights, as well as Rush. Big time re-balancing or even a re-design would be appropriate.
- The IRx1 scopes just feel cheap. I used them for like 5 minutes in 65 hours of play. I'm against it. In a game with extremely gameplay-relevant lighting and shadows, it's just counter-intuitive for one sight to negate all of that. Everytime when I'm well in cover or hidden or in a shurb or shadow and I get killed, it was a dude using IRs. Feels cheap every time.
- Tactical Flashlight. Well. I'm partially okay with them. They just need to be toned down a lot and they should dynamically scale back in effectiveness depending on light conditions. Overall, they feel cheap and silly. I don't use 'em out of principle, unless I'm playing Rush in a maptier with a tunnel (even then, I don't really do it).
Long story short. I believe BF3 would be better without them. Really hoping we're getting something like BF:BC 2 Vietnam. An expansion without all the fancy high tech gadgets and bullshit.