The map uses portals but interestingly not through the portal gun. The Puzzle can be solved, however it will require teamwork and brain power.
This is a Co-op map, it has lots of faith plates. To play, go to the hub then type in console: changelevel mp_coop_lotsoffaith_ljdp No friends? at the menu type: ss_map mp_coop_lotsoffaith_ljdp
This is a medium difficulty Coop map. It doesn't include any hardcore moves and you don't need extreme precision or timing, but it is quite challenging.