Your favorite kind of weapon in CSS?

Knowing the weakness and strong point of your gun is quite important,especially when you go with group team,should always be using the right weapon for the right scenario.For example if you to go into close quarters combat with a sniper rifle,you will have to switch to pistols while waiting for your primary weapon reload,and remember to load your backup weapon in case in case you need to quickly switch back to them again.Back to the topic,mine would have to be the only one machine gun M249-SAW,actually has tons of ammo and can take down the whole team if they are near you but never hold down the fire button too long or you will run out of 100 bullets and hit anything but your enemy.
Nuff said