Halo 6 Mouse and Keyboard Vs Controller

With all future halo games coming to PC in addition to xbox what are your thoughts on mouse and keyboard being used. If they have cross play then they will need to force PC players to use a controller however if they don’t then what will happen to the competitive scene? Halo has been played competitively with controllers for ages so will all the pros just have to learn how to aim all over again?

This is kinda badly worded but the point I’m trying to get across is how do you think mouse and keyboard being used on PC will affect the game/community. I feel like having a larger audience will be good however I wonder if keyboard and mouse will make Halo too easy since almost every fight will be a 4 burst/5 shot.