It's a very easy mission. Just a tip, is to use the cs-gas on small spaces, like toilets or small rooms. The suspects will shot at the door but they will soon start to cough because of the gas. Or if its a big room, use the distraction grenade, but do not look directly at it when you throw it! The gas are also good when its alot of peoples in a room, specially with the HK69A1 ( gasgun in stetchkov.. )