I would like to point out that sunsinger is the class I use most and I find the most effective stratagy to use with it is to grab the extended duration perk and armor perk and wreck havoc with the stickies using a pulse rifle to mid range and stock up a spare nadr at the end of the abilities duration or when you have less people to kill. In my personal use I have thrown and landed tons of sticky nades, mostly because I used the plasma nades in halo and semtex in codmw2, but to say the class is just too weak in my opinion is wrong, it just takes a small amount of planning ahead and proper use of the sticky grenades.