ARE AWESOME. 
 
Love to use them, especially in matches when the other team is full of recons. Kills line of sight and makes arming M-COM stations easier. 
 
You guys love smoke grenades too, I know.

I never use them, might try them out later though.

SMOOOKE, SMOOOKE... 
 
Are ya smokin yet?

I've actually never seen them being used ever, how big are the smoke clouds per grenade?

I have used smoke grenades a couple of times while playing rush. Just arm the bomb, then shoot the smoke, then kill bad guys.

" I've actually never seen them being used ever, how big are the smoke clouds per grenade? "

Yeah, I tried them out a bit once I got them for my grenade launcher, and they can be really fun to spam when you throw down the resupply.

hm, i never seem to use them, or see them used. odd.

That video is awsome and is now making me try smoke grenades. I didn't think it was possible.

When I played this afternoon, it was my first time to actually make use of the smoke grenade and I agree, it's awesome!  It's effective if you're actually attacking and arming an MCOM, surround the MCOM with smoke and wait for defenders to come in and try to disarm the MCOM then go for the kill as they become visible from the smoke.   It's actually a very effective strategy to defend the armed MCOMs and for passing through areas where there are lots of snipers. :)

Smoke grenades are made of win. I haven't quite considered the idea of them for an offensive purpose and arming the stations, but I found them particularly useful for whenever disarming the bloody thing to avoid sniper rifle.

" @Ping5000: And they are able to kill!? I think I've been converted. "

Shhhhhh! Don't tell all the noobs the secret!

They are pretty useful, but you get no points... directly. Yeah I know if you blow up an M-Comm you get points, but you can kill people easily with a grenade launcher shot so it's kind of a bummer to have to use Smoke. The shotgun is just hilariously awesome if you get a clean hit with it.

I'm starting to use them quite a bit. I used EMP grenades constantly in BF 2142 and I really hope they bring them back in the form of SCALAR weapons (strike, grenade, mines, etc...).

My buddy and I love to go dual assault and smoke the place up! It works really well when arming M-coms then getting in position to cover it when people are going to disarm. 

I'd rather use the shotgun attachment.

smoke grenades are awesome, I've won several Rush games because of them.

I use them as a last resort, when an objective is too heavily defended. I set up shop at my ammobox and 'smoke' a large area. Hoping for my guys to take advantage. 
 
Btw. the smoke seems to be thicker for the enemy. You'll see through it, while the enemy doesn't really.

I can't wait until I get smoke grenades (I barely use assault)

" I have maxed out my Assualt, don't use them what so ever now. They don't help the team in anyway, However, Medic can revive and heal you and Engineer can blow up vehicles and repair your vehicle, I would only use Assault if i was in the mood for a one man army lol. "

Yes. I use them a lot on Isla Innocentes map. Especially if the enemy team is rushing position B in the village and have a lot of recon down range. I just smoke spam the M-comm and keep myself resupplied. Recon can't do shit. My only complaint is the smoke effect looks really thin and weak compared to the MW2 smoke grenades.

" I have maxed out my Assualt, don't use them what so ever now. They don't help the team in anyway, However, Medic can revive and heal you and Engineer can blow up vehicles and repair your vehicle, I would only use Assault if i was in the mood for a one man army lol. "

@Evilsbane:
I was just saying what i thought about Assault. No need for sarcasm.

It sucks when somebody stabs you in the middle of the smoke.

The problem with smoke grenades is that your teammates usually sit back instead of use them as cover to advance. It's like their brains just stop working.

I love using the smoke grenades.  They are effective in so many different situations.  I'll fire one off if a teammate or I am pinned down, or smoke a tank out of position, lay them down to advance in sniper territory, etc.  But most of the time I use them for attacking/defending flags and mcomm stations.   
 
I didn't know you could kill someone with a direct hit, I'll keep that in mind.  Bottom line, making the switch to smoke nades made me a better assault class player.

I use smoke grenades whenever I use the assault kit. Defending or attacking, smoke has its uses. Aside from the great cover they provide, this is my most awesome smoke grenade moment...
 
Playing Rush, defending. The enemy team had one ticket left and had planted on our final M-COM. I walk up to a window, see the guy that planted by the crate and peg him square in the back with a smoke grenade. We win. Haha.

Smoke grenades = win in Hardcore Conquest!

So, I was finally inspired to use smoke.  And wooooow.
 
Prepare for the other team to HATE you.  Once they finally realized where I was in a building smoking the m-com so teammates could arm, they focused solely on me.  Tanks shooting at the building, people blind firing, just so I wouldn't be able to pop my head up and fire off another.
 
Needless to say, I distracted them enough with them wanting me dead AND smoking the target that no one even got a chance to start disarming it.