qUESTIONS?

You can do a Curb Stomp in the single player campaign game and in the online multiplayer game. Here's how you can do a curb stomp. Shoot down your target (the leg would be a good spot) until they are "down" get closer to your "downed" target and stand next to them. An icon (blue x button) would appear in your screen. Press "X" and your character will perform the curb stomp. I hope th is helps. The ranked matches have a scoring system that would give you a ranking against all the players of gears of war worldwide. It's like a leaderboard for bragging rights among the community. Public matches are usually for players who just want to play (non-competitively) and avoid the pressure of ranking high on the leader board.