I think you should not go for that bridgepoint. You should go for their homebase first.
Furthermore, you have to take only one base to stop ticketbleeding. If you get more, the opposing team get too concentrated at the east side of the river and it will get very hard to get across.
About crossing the river, don't go for sneak attacks, cause you will just be picked up by uav and radar scans. Order your squads to have 2 rpgs in them. Attacking their main base with 4 full squads would result in 8 rpgs. An apc is taken out by two rockets, with a bit of coordination they are destroyed in no-time.
Go for that main base, and the moment it's captured give at least half of your squadleaders to spawn their when they die.
The opposing team can counter your tactic by having his whole team defending their homebase. If that's the case, just capture all other flags and start rushing their homebase till it falls. You will have a fair chance, especially when using arty right, stealing their tanks, and destroying their assets. If you get their homebase, but someone sneaked trough and starts acting as a mole (as in wack a mole), switch over to the original plan of crushing them from both sides.
If you get their homebase the opposing team is likely to pull most of it's troops back to recapture. Then you can get the west side with relative ease. Also, a good defence of you're newly aquired base would be to use your western troops to attack the opponent (the ones attacking your base) from the rear.
(It all sounds sooooo simple, I know

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