do you know modern warfare 2

this is just a basic test to see if you know modern warfare 2

1 which one of these is a shotgun
2 which one of these lets you respawn where you drop it
3 what does the blast shield do
4 up yo how many classes can you make
5 what does the riot shield do
6 how many killstreak rewards can you choose from
7 what does the tactical nuke do