I have a couple of suggestions for shotguns that would be a great addition to Insurgency Sandstorm.
For the insurgents;
The IZh-12 and the Saiga would be good additions.
.Would cost only 1 supply.
.Slow reload and obviously only having 2 shells.
.2 reload modifications.
.One to break it open faster, costing 3 supply.
.One for loading the 2 shells at once costing 2 supply.
.Would cost 4 supply
.Expected modifications like different sights.
As for the Security;
Beretta SV10 and the USAS.
Their prices would be the same as the IZh-12 and Saiga the Insurgents have and with similar if not the same modifications.
Supply point balancing is obviously up to you guys but i've thought about this and discussed it with a few friends who have been playing for 100+ hours, so we've established a baseline.