Step 1: Open map Aim_Botz.
Step 2: Enable only 1 side of 4 sides.
Step 3: Find your favourite tunes, and finish your food.
Step 4:
Do 500 kills with AK-47.
Do 200 kills with M4A4/M4A1-S ( what ever you prefare.)
Do 120 kills with Desert Eagle ( if you dont really use this weapon you can just stick to M4A4/M4A1-S and do 320 kills with it.)
Do 130 kills with AWP (thats enaught to get your flicks/quickscopes/noscopes right.)
Do another 50 kills with AK-47, so you dont forget the spray pattern because thats one of the most important weapons to warmup.

Step 5: You are ready to play any competative game mode (FACEIT,ESEA,MM...etc.)