First of all, you can skip all that "honor rule" you described with just a custom Infection gametype where the Infected has the sword, giving survivors just one bullet, placing a magnum-ammo on the map (preferably on the middle) and 1 life per round rule.

Second, add more screenshots of your map to gain interest of other users.

Third, at simple view, the layout of the map looks simple so maybe you can put a more effort on aesthetics and details, because it seems pretty blocky hehe

Kudos on that

 

you could use free for all. give everyone lots of health and instant shield regeneration. then put melee damage at 10 percent. and maybe give the survivor a stronger weapon to kill the muderer in one shot because sheilds regen straight away so that melee damage cant kill people. try a scattershot or maybe the halo 1 pistol. on your map, is the murderer supposed to die from one shot? or more?

 

Is this in any way inspired by the Rainbow Six Vegas 2 map of the same name? That was one of my all time favorites.