You shouldn't be running around in the first place on large maps,snipers are easy to kill with single shot fire and are hardly an issue.
If you want fast paced in BF3 then either play CQ or TDM.
I guess Cod can be pretty fun if you like an arcade shooter where you just run around and point and click at the first enemy you see.
Doesn't feel like an arcade shooter,i guess you haven't played against a clan in BF3 yet.
Teamwork and coordination is everything.
BF3 is nothing like Cod other then the CQ maps which are made to cater for Cod players.
I'd like to pop in and saw a few things, I can't really agree with those two comments. Now I am an avid CoD gamer (Been so since CoD1) but I do play I do have a mistress who's called Battlefield

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1) There is a lot of running around in almost all BF games/maps, and your skill level just let's you stay in the thick of the action for longer. When you die though, it's a loooooong run back to the action (Especially if you're playing Conquest!). A lot of players, myself included don't like that about BF.
2) Both CoD and BF are full of snipers. CoD is full of quick scoping whereas BF has snipers camping at the edge of the map. What does piss me off is when you get a shotgun sniper in BF, that is not realistic and seriously irritating.
3) Both games require teamwork. BF has teams working together in the form of infantry and vehicles, that's the only difference. Honestly, play against a CoD clan, teamwork and team tactics are a HUGE part of CoD and clan matches.
4) Now as too BF3 being a lot like CoD, I have to agree. BFBC2 felt unique, slower, more tactical. BF3 has thrown a lot of that out of the window in favour of more fast paced action, I think this can really be felt when you play on the larger maps, the guns just don't "feel" right. That's my experience imo. BF3 feels soooo much better on the CQC maps like Metro and those two others (Can't remember their names).
5) CoD is more of an arcade shooter, yes, but people forget to remember that the games cater to two audiences. CoD caters to the fast paced, high octane, adrenaline pumping combat. BF3 is a game for people who like a slower form of combat who prefer a slightly more realistic view of combat and like vehicles. Very different games.
My issue with BF3 is that it's pretentious. EA went on and on about how much better their game is than CoD, then come release day, they release Battlefield 3: CoD. The few vehicles aside, the game is much less tactical than either BC2 or BF2, with the same gameplay CoD has being encouraged in BF3. It claims to be a realistic shooter, but in all actuality it's nothing more than an arcade shooter with vehicles.
Pretty much my sentiments. I remember EA attacking CoD in several instances, and yet in the end of the day they stole a lot of the CoD series. To me, CoD just wants to be the best at what it is, a past paced shooter filled with thrills, and I believe Black Ops II hit that nail squarely on the head. BF3 came out and tried to be what it's not and suffered for it.