Hey, this is just a simple guide on Demolition.

Today I will be showing you:
Offense Class
Defense Class
Kill-Streaks
Offense Strategy
Defense Strategy

First off Demolition is a game in which there are two sides. Offensive and defensive in which you have to plant and defend a bomb site ( A & B)

Offense Class (Demolition): Your favorite class and one that you are most familiar and best with. I use my Scar-H, because it is one of the most powerful Assault rifles in the game, and is very good when you have a group of people coming at you. Since most of them rush in while your on offense to defend a bomb site, claymores will help alot because people just run into them without looking hoping to defend the bomb but usually die.

Defense Class (Demolition): I would most likely prefer a class with a LMG ( Light Machine Gun ). Your secondary could be a shotgun preferably the AA-12 since it could burst fire when enemies are really close to you. I think Sleight of hand is a must since your going to need to ADS (aim down sights) much faster while you camp. Semtex will be great since you can throw them onto the bomb site and usually get a kill or two.

Kill-Streaks: In demolition its easier to get kill-streaks fast but die very fast too. I would prefer Predator missile a MUST so you can clear off bomb-sites while on defense or offense giving you at least 2-4 kills. Also I would prefer using a Harrier or a Pave-low which you can put in the middle of the map to rack up a couple of kills.

Offense Strategy : If you don't usually kill a lot but rush I would suggest having a class set up with Marathon pro, Lightweight pro, and Ninja pro or Commando pro. Using a Vector silenced and your favorite handgun with tactical and rush planting the bombs. While you plant a bomb-site and you see that at least 2 people are there rush to the other one but watch out because people usually expect you but not most of the time.

Defense Strategy: Most likely I would use the M240 with Grip and semtex. I would Spray and Pray mostly and if this isn't your way to play then you can always rush or use your favorite class. I usually rush and put a claymore or C4 on one bomb-site while I rush and defend another. Once I see it says one bomb-site is planted I quickly activate the C4 but still camp on the non planted bomb-site.

Hope this guide helped out some beginners, or some people who need some help on Demolition.