Whether fair or not, Call of Duty fans have the reputation of being immature teenagers shouting homophobic slurs over the internet, or being 'bro' gamers whose COD-flavouring palette is only complimented by FIFA and Halo. When your fanbase is known for throwing hissy fits and breaking things when they lose, why would people want to get into your game? The perception of Call of Duty as a game for foul-mouthed sore losers is something Activision still need to tackle. As with a lot of problems facing the Call of Duty franchise, this starts to become a self-feeding phenomenon - the worse the reputation of the Call of Duty community, the more people that get turned off due to the toxic community, the more concentrated this toxicity gets. If the franchise wants to see the other side of 2020 with an active community, they need to foster fans outside of the typical frat-gamer stereotype that's associated with the franchise.