Destiny is designed to be enjoyed with 3 characters. Cores and mods in their current form make it impossible without serious time commitment and RNG to have desirable builds across all 3 characters. This goes beyond cores and mods and to the the fact armour and guns should have rerollable perks to allow for builds. Bungie should embrace that players want different builds for PVP and PVE and need a reasonable means of doing this on all 3 characters. Something has to change, this is bigger than just cores.