My friend Squat Commando and I were throwing around ideas the other day for weird and strange custom rules and something came up. How about a chapter that forfeits all ranged combat?
Now this as I begin with Ideas here please remember:
This idea is intended as a calculation of what is possible and not just some thing to look at and say, "CHIAPETOFDOOM your a dumb-head." Thank you. 
Alright lets begin
I was thinking, my fluff for this chapter (fluff people dont kill me here with specs on power weapons or such if I miss something) would go along with maybe something that out on the outer fringe they have access to mass quantities of energy or whatever it is that fuels Power Weapons. This Chapter is also a group of warriors dedicated to fighting in the arts of close combat. They excel in melee. Thus we were thinking of some random traits.
-The ability to use NO ranged weapons whatsoever. No bolters, no bolt pistols, no lascannons, nothing. All anti vehiclular assaults would have to be done with melta bombs or Power-Fists. (Im sure there are problems with this but I still like the idea of major flaws in a chapter)
-Instead of using a bolter, the average astartes warrior would utilize either a
BASIC power weapon (power sword,axe,mace,whatever)
-Power weapons would decrease in cost by 10 points by elimination of the power weapon base cost. (used above in the normal space marine equipment)
(for instance Power Fists would cost 10 points less for this chapter.)
-Either A full perhaps 4 space marines (the same amount as a devestator, purgatory(Grey Knights is it?) or other heavy squads would be able to carry a weapon like lightning claws or power fists or thunder hammers.)
As far as I can recall, along with perhaps the rules that you might implement for a Close Combat Space marines army, I was wondering what other people think about this.
If its too overpowered, please tweak it down and explain why (give points and such perhaps), If you think of more ideas, please add them in (give relative points to why it should work), Please dont just tell me it sucks.
Thanks for the input, Im just messing with ideas for a fun custom army with my friend and Id like to make it fairly even if I can still.