HAWKED

For this achievement you will need to stun 50 renegades.

Things to note:

Stagger shots mod (Disorient targets after several hits) Does not count for stuns.

You can't stun the same person more then once in that same match. (Even if they resurrect or use revive kit)

Things that count for the stuns:

Stun grenades (Can be found in crates, loot chests and can be obtained using the 'Flare Gun' Ward.)

Red explosive barrel (Shoot this next to a renegade and it will stun them)

The spinning blade environmental trap might work too but can't confirm this.

To make this achievement easier, you'll want to equip the 'Flare gun' which can be found in the loadout under 'Ward'. This ability lets you call in a care package which will contain various things such as health, armour & throwables.
Equip this and head into a match. I would highly recommend playing on a dead server ( I used Oceania server) it way take between 10 minutes to find a game but it should pair you up with a couple of real players and bots which spawn in at random.
Once in a match start using the flare gun until you get stun grenades, If you equip one stun grenade, it should make the flare gun drop stun grenades most the time.

Once you have the stun grenade, wait around for a little bit and a bot should spawn in and try to attack you. Don't be alarmed, the bots are awful on this.
Throw you stun grenade at the bot, once done you should see some stars and spinning lines above them which means the stun grenade hit them correctly. After that, kill them and repeat :) .

If you wan to run around and get trinkets or even the main artefact, this method also works on the move. It can be done to real players too , just be careful, try to throw the stun at them while they are distracted with a puzzle etc.

Also here is a video guide I made as an example:


Hope this helps.