Halo Weapons Part 3-Tactical Shotgun

The UNSC shotgun is almost the worst weapon in Halo (That"s my opinion) this weapon totally very noneffective in long range, and not very good at delivering damage even killing enemy units.
maybe some gamers realize that this weapon become the best weapon for the last 5 level of the first Halo (In first Halo, flood combat units can only be permanently killed if 2 parts of it"s body destroyed, but the shotgun only need one round to get it done) but after Bungie  realize that the flood combat units was a weakness to Halo itself, then the flood units advantage was finally removed and the shotgun was no longer become a favorite weapon

The shotgun itself was effective against light or medium armored units (Grunts,Brutes,elites,Flood combat forms) and totally uneffective against numbered enemy units and tank units (Flood infection forms, Hunters, Flood juggernaut) eventually this weapon spawning rate has decreased since Halo 3 because it have to many weaknesses and waste allot of ammo,