Battlefield 4: Naval Strike - PS4 [Digital Code] Lost Islands:Amidst the fishing villages of these tropical isles, a downed passenger plane makes a strategic staging area for conquest. Nansha Strike:The largest ocean map in Battlefield history is the proving ground for your squad, as you battle both the enemy and choppy, stormy seas. Wave Breaker:Shipping docks give scant cover as you rush between rocky islands, but you can lure your opponents into the hazard-filled naval base. Operation Mortar:Utilize your siege-breaking skills as you storm an abandoned cliff-side resort, and enjoy the vistas of your newly-captured HQ.