First off, I really think grenades need an up on damage, just a little bit. You almost can't kill anybody at all with them. They have to be directly under someone in order to get a kill. Blast shield or a riot shield? Not even happening.

Secondly, the challenges for smoke grenades are ridiculous. For the title you have to kill 25 enemies that are in your smoke-screen. 50 for the emblem. Now, I can see someone telling me to use thermal in an objective gametype (ex: Domination or Head Quarters.) All I can say is try it. It is near impossible. The smoke-screen is way to small to be useful, and rarely do people just run into smoke-screens. This might not be a big deal to anyone, but it's frustrating to attempt this challenge. Oh, and you can't scavenge smoke grenades. At all. So you get one shot per life (which is rather difficult.)

Thirdly, Riot Shields are too small to be effective. While you might think Riot Shields are stupid since you can't even hurt the person that's using it unless you get the right angle, I say BS. You have to crouch AND look down in order to protect your feet, inhibiting your view even further since the bullets damage the shield. Also, if you try and strafe (move left or right) even just a little bit, you instantly become vulnerable from the side. Riot shields are already ineffective enough as a weapon, and basically render you useless unless you're with a team, on-top of all of this.

If you disagree, please explain why.