take longer time too find another opponent after each kill
I got more kills but less money because it's not crowded enough to have easy retaliations...
Personally, I feel that they're a bit too big for my taste. Though, they are expertly crafted (the facility is amazing... just look at all the detail put into it) and the variation in map size helps spice things up a bit.
Maybe it feels bigger than it actually is because we haven't memorized the exact map layout yet?