You could just mix it with a bit of Brothers in Arms and Battlefield 2 and some more realistic ways.
Before you spawn you'll enter some sort of class-selection menu.
The players pick a squadleader before the match begins.
The server randomly puts you in a squad.
Now, in BiA you have fancy corona's pointing where to let your firemen shoot.
Alternativly, RO:O could use voice-commands to let your firemen know where to shoot. (Note: Only most high-ranking officers/soldiers in the squad may use leader voice-commands, the lower-ranking officers/soldiers may only use the normal voice-commands)
Or even more important, where to go... (Using the same voice-command system).
So no to fancy coronas and (dis)appearing (flashing) lights...
Before you spawn you'll enter some sort of class-selection menu.
The players pick a squadleader before the match begins.
The server randomly puts you in a squad.
Now, in BiA you have fancy corona's pointing where to let your firemen shoot.
Alternativly, RO:O could use voice-commands to let your firemen know where to shoot. (Note: Only most high-ranking officers/soldiers in the squad may use leader voice-commands, the lower-ranking officers/soldiers may only use the normal voice-commands)
Or even more important, where to go... (Using the same voice-command system).
So no to fancy coronas and (dis)appearing (flashing) lights...