-You can use both the new weapons in any game. See the pics below.
-FY71 will have 36+1 bullets with extended mags. (total of 127 bullets)
-It seems a powerful weapon, killing players with it isn't that hard (3-4 bullets on a target without armor).
-It has a decent amount of recoil.
-Usual 5 seconds before the grenade explode.
Below you will find some pics about these 2 weapons:
http://imageshack.us/photo/my-images/854/20470701.jpg/
http://imageshack.us/photo/my-images/402/31638048.jpg/
http://imageshack.us/photo/my-images/821/59782527.jpg/
http://imageshack.us/photo/my-images/228/75916358.jpg/
http://imageshack.us/photo/my-images/580/35361489.jpg/
http://imageshack.us/photo/my-images/803/60254350.jpg/
http://imageshack.us/f/696/crysis22011061420272477.jpg/
Feel free to ask anything you want. Everything is in Italian.
edit: changed the pics from img to url.