A couple of the missions I've made are ground combat based. I never really liked space combat too much since it's always one ships (yours) fighting against 10-15 and you always come out on top. And you never really feel remorse for the crews of said ships. (I watched TNG: The Wounded recently which really reinforced this feeling.) It's just pew pew pew and done. At least on the missions on the ground you don't feel too much like a mass murderer.