1 it's more casual friendly so shut up casuals
2 the maps will WORK
3 teamshooting will be less of a problem even tho you should fix matchmaking for that seriously solo's against a six stack?
4 it'll encourage casuals to start playing comp and get more invested in PvP
5 no spawn killing because with six people you can have 1/2 people at every possible spawn and it's actually really annoying sometimes
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Weapon slot rework is the #1 reason why y1 pvp sucked, 4v4 was the #2 reason.