Money
You start off with 10 dollars, and if you die, you lose 5, you lose 0 if you don't have any. You use the money to fix your tools or buy more grenades.
Mines
You can place mines, and when somebody steps on them, you blow up. They only stay for 60 seconds.
Food
You can buy food with money(if added) to regenerate your health. If the money thing isn't added, you find food around the map.
Flash bang
When you throw one, the other persons screen turned completely white for a couple seconds.
Certain People Chat
This is like team chat, except certain people on your team. 2-6 people.