subprocess call question

[Wanderer]

This dos batch files works on windows 7

"C:\Program Files (x86)\DOOM 3\qoom3.exe" +set fs_game_base darkmod +set fs_game training_mission

but this python subprocess.call doesn't

subprocess.call(['C:/Program Files (x86)/DOOM 3/qoom3.exe', '+set fs_game_base darkmod', '+set fs_game training_mission'])

qoom3.exe starts but it gives the warnings "unknown commands set fs_game_base darkmod and set fs_game training_mission"

Why?