You know, I love that gamemode as well, but I think it's suited better for tactical shooters such as America's Army or (lol) even Counterstrike*
The battlefield series has always worked well with waves of reenforcements making the battle seem much larger than it really is.
That said, I wouldn't mind maybe a special one-off level with this type of gameplay. Something involving a lot of stealthy ground action. Some kind of sekret Imperial research facility and a Rebel strike team.
*not a tactical shooter
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