Bf4 campaign bug mission 3 get to the bridge

perhaps this help you :

http://www.primagames.com/games/battlefield-4/coverage/Battlefield-4-single-player-campaign-walkthrough

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I recall someone mentioning that if you slowly move the sights towards the head of this kin of blocking NPC, you can eventually shoot him and open the way in the process. Not exactly the most immersive thing, but it's the only olution I know of.

I have the same problem on PS3 and I've tried everything I can think of like restarting checkpoint - mission - PS3  and tried going with diff weapons and tried using grenade and guns to kill those guys or at least move them away but no luck ☹️

Tried shooting the chopper tried crawling jumping hiding and everything else I could think of and no luck ☹️ 

and this is deff a bug because I have youtube videos and read walkthroug guides and they don't seem to have this problem so most likely this is the new patch/update issue  

I deleted BF4 install (not the save data) Disabled Internet - Re-installed the game (so no patch to mess things up) and then I played the mission again and no problem those 2 idiots get killed by the chopper so they are not longer in the way
After I finished the hole mission (china sea something) I quit the game - Enabled the Internet again and then re-started the game - it installed the new update and I played on 🙂

So clearly this is the update BUG that needs fixing

Aim at the NPC at the base of the stairs with your weapon and fire side to side, some of your rounds will hit him and kill him.  You can then go into the room and pick up the stinger to take down the helicopter.