So missile guardian is gun and all but was kinda meh specially with the ludicrous DP cost.
Until I was adamant I wanted to beat Zig with it...
Eventually I found out a loadout that can kill Zig... and anything else in the game for that matter O.O.
Missile Guardian with correct loadout (require a bunch of mods though, was using hullmods and missiles from all over the mod-verse) can kill ANYTHING, even whole fleets by itself! That thing is just terrifying. Someone should make an bounty version of it