Battlefield series gameplay = run, fly, drive around in circles sitting by a flag for 10 secs and move on to the next point, rinse and repeat.
Quake Wars gameplay = run, fly, drive as a TEAM to complete actual OBJECTIVES that require TEAMWORK to complete. Maps have choke points that create conflict.
Tell yourself honestly who is gonna win?!
I do think a sci-fi bf could be cool...but it should have came out when BF2 came out rather than competition to quake wars...or lack of.