All of them are in favor of a gun to me.
It just so happens a map in favor of midrange only would kill the least amount of guns.
2 is KAL 7 map.
1,3,5 were the best though for me.
1. Was M9, AK, Dragon usage.
3 Was the same as 1 really
5 Was M9, KAL, AK
I tried all those weapons on those maps and did well with them.
But yeah if anything 1 was a Dragon map too. But it has routes you can take to evade it as much as possible, 3 was also a Dragon map with escapable routes and 5, designed for the M9, KAL works if you stick to the center, and AK just works whenever the M9 does in general.
I'd like to see those 3 return.. I've got a lot better with the AK after using Accuracy with it all the time.