Axis strategms, Plan A (2Plaza - 4Bridge)
We stick an mg at the top of the road leading from first flag down to plaza and he covers both the tower and that main route.  
An Stg in 3rd flag room, covering the crawl hole and the sewer stair exit.
We overweight the bridge with the rest of the team.  1 sniper provides cover while the 3 others cap the bridge.  When capped, 2 of the 3 cappers move onto plaza while the 3rd takes the back route to the allied first flag.   The sniper remains at bridge and holds it in case the advancing team dies.
When the bridge is capped and the 2 from the bridge team move to cap plaza, the middle-flag man goes through the crawl hole and backs them up.
If plaza is secured and all that's needed is the last flag, mg moves up to cover the plaza flag.


Allied strategms, Plan A (3Plaza - 3Bridge)
The 2 bridge cappers get the bridge under the cover of a sniper placed in the allied spawn building.  Then move up and into the axis spawn area when possible and try and hold the axis first flag while the sniper moves onto bridge.
2 allied grab the Plaza while a cover-man watches the double sniper windows overlooking plaza.  When capped, the two cappers move on the axis first flag while the cover-man moves up to third flag.