All invasion missions can be done in 3h or so(best to play in squads - everyone have different agent but when you deal dmg to one you don’t see it still counts)
PvE in capture dread you can farm ~50 agents in 30min so 7runs to get T5 ~3h - 1st mission can be done in 10-15min.
PvP is worst - 6 was max amount of agents in one game for me… on average it’s 3. So to get T5 with pvp we need ~240 agents aka ~80 games with ques which are at least 50% of the time gettin this mission done will take ~12h of gameplay
doing it by farming a specific pve in a special way for me isn’t how things should be measured, however. if you go on a normal pve, like always, you probably will make 4-6 agent kills per pve, if you are unlucky even less.
pvp is 2-3 agents in t5, but only 0-1 in t3, depending how often you can kill them it can be more.
even if i care less about pvp quests, since i like pvp anyway, this is horrible. especially if even you with your arts of uberfarm need hours to do it.