You vs Them Just to fair 10 v 10 list

I notice many players seem to love to list all the flaws of thoses they play with,in other modes because clearly they know everything and never make any mistakes while playing gears 5.So try this list the 10 most common mistakes others make and then try and list 10 of the things it took you awhile to get good at in gears games,If your going to hammer others don’t forget you at one point where new at this game to.How would you have felt if a better gears player said this kind of stuff about you when you where new?

Note:Now i know there are a small number of players who join games to act the fool and ruin it for others but that’s a different disscussion.