Coming from using the MP5 to the AK74u I thought the 74u was horrible. The MP5 being super accurate and having next to no recoil made using the 74u feel weird. But I got used to it after a few games, reasons for using it would be the great bullet penetration. You don't want a red dot sight on the ak74u though as the stats show it will lower damage. You want to equip stopping power and deep impact I think those 2 being the best perks for the gun. Also the AK74u has a vertical kick in its recoil, for using it mid range I find moving slightly left and right will help giving you a much more accurate shooting then just standing still, that should also help you from getting shot. Also in close range you don't really need you use your ADS as you are likely to hit anything in range as long as your hip fire aim isn't horrible. Also the 74u is only good for medium range fights or close range encounters, so you need to be moving all the time. The AK47 is a much more deadlier gun with better range I often use this one in the bigger maps.