As we know, Mac 10 is the cheapest primary gun in-game. It's a Sub Machine Gun which is purchasable only in the Terrorist side.

Pros:
1. It costs only 1050$ and so it's super cheap.
2. You feel like Usain Bolt after getting a hold of it.
3. It allows you to run and gun so you turn super cocky as a result.

Cons:
1. It has got a very short range.
2. It deals lesser damage than even a PP Bizon.
3. You won't be allowed to use it once your team has got money.

The way to shoot using it is pretty simple: Get the first shot on head and then breakdown to the bottom of your opponent's stinky body. Make sure you jump like a wild hungry kangaroo while facing off nasty scavengers so that they can't do anything about you.

Your next concern might be when to use it:

• You shall use it after you lose the pistol round if you're sure about getting some kills as an entry fragger.
  
• You shall use it if your team cannot afford rifles but doesn't want to go for an eco either.
  
• You shall use it when you turn completely insane.

Since I'm a typical Dust 2 player because of having a potato PC, here are 3 instances where I would recommend a Mac 10.

• 1. B spawn: If you've got a B spawn and you can reach there before the opponent, then grab a Mac 10 and get into the site. You can ask the guy behind you to throw a proper flash. A skilled opponent would normally throw an incendiary from mid door first followed by a flash, the time when he uses flash is the time you get your first kill. Now, without getting peeked from CT or A ramp, you can get another kill by hunting down the guy at mid doors.
  
  
• 2. Long: You're the nearest guy to Long. Ask the guy behind you to flash A long for you and you're eventually gonna kill any guy who was at long.
  
  
• 3. Short: Ask a guy to smoke mid and then go to A site through short. There's probably gonna be a guy sitting at Short and taking him down will deal a bit of damage to you, but you can make it. Now, when your team goes to capture A site, you're supposed to jump to CT and get another frag.

You can also use the mac 10 in the pistol round if you succeed in getting a pick using Deagle or USP-S through T spawn or mid before the buy period is over.

Yeah, that's it. Make use of the Mac 10 Master Race efficiently and be a good potato!