Iv'e tried every single thing possible to gadgets up and stealth it does not go up at all. im on xbox 360 my gadget stat is 76% and stealth is at 84%

iv'e tried spamming flash nades and smokes and jammers nothing at all.

iv'e gone up to mercs stealthy without them noticing and breaking the neck no stealth goes up. iv'e used smokes and flashes plenty of times against mercs and still nothing.

anyone else have any ideas on how to get this up? because nothing seems to be working

Well I got my Stealth up from 84% to 88% by pulling mercs over rails. And gadgets up to 96% by using different gadgets each life you get.

i just went into a game and pulled every single merc over the railing untill every single one died and i went up 1% on stealth so this must take a long long time

Try hacking Generators alot, that also makes your Stealth go up.

i think i know what ur problem is. your stealth rating goes down if you confront guards. just sneak past. throw an object or ocp a light and sneak around them. the only people that you can confront are main dudes like lacerda on chaos theory. as for gadgets, use sticky cameras to view round corners, and then pick them back up. ocp as much stuff as possible. ohh and if there is more than 1 guard standing in a puddle of water, fire a sticky shocker in there. im not sure wether this lowers your stealth meter, but it works. so all in all, dont grab, knock out, kill,get spotted by, or shoot any guards. ohh and did you know the sticky camera has a gas function? try that to get your gadgets up. hope i helped.

ohhh by the way, if you are talkin bout on xbox live, the above does not count. thats only for the campaign