I was beginning to feel the same way until I learned how to take care of shotgunners. Now I am alright with them because I usually come out on top. I normally use the SMG anyway, but it is a good weapon to take out a shotty with. Keep the smg aimed high around chest/head level and keep moving. When you do encounter shotty's there are several ways to go about it, Hopefully you will encounter them at a distance. If so just shoot at their head and you should get him, and be sure to keep backing away from him, keeping as much distance as possible...DON'T let him get close enough to kill you...you deserve to die if you do so.
Circle fighting...this will happen alot with any weapon. Try not to do it in a small area against a shotty...try to keep moving and change direction alot. Keep aimed in front of him and aimed high so you will hit him.
Try not to rush around corners. Take a wide berth at doorways and corners. If you meet him around a corner face to face, your dead.
Just a few tips that have helped me. I have had guys switch away from shottys because they kept getting killed. Hope that helps.
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~Mange~
