can any body let me know how to get xp points on armour my power and stealth are 5 and going up but still on armour 1 no xp on my game played.............all the best and also how do you get grenades and use them......

Grenades: Double tap Y and then Right Trigger to throw
Armor experience: Before you kill someone press Left button to activate armor (rinse and repeat)

Turn on armor mode, kill people, use energy in armor mode = XP

thanks for your quick reply will try next time on game all the best andy......