Boobies

I read some article about sniper team. It stated the spot man always carry an assult rifles for protecting the sniper when things get too hairy. Say, in a long mission in the jungles (a week+), what weapons and gears you would bring? And how many ammos the sniper and spot man bring?

Do they carry really light, loike 2 clips of sniper rifle ammos and 4 -5 clips of assult rifle ammos?

I don't know much about snipers except watch sniper movies. So please list a few mission senerios and the gears for me please?