If you guys had to do it all over again and had to pick only one from the following weapons for close quarters combat which would it be? 1. H&K MP 5/10mm 2. The new military issue 6.8x43 SPC special purpose caliber. 3. M4 4. AK47 Fully Automatic 5. Shotgun semiauto 6. Shotgun pump 7. Something different than those listed above. P.S sorry if I have made an inappropriate question for this forum but I figure no one else would know better than you guys. Thank you.