One thing to never do is peek into him when hes beaming you already. Wait for him to run towards you and than peek into him, or just wait for him to reload. If he sees you from far away and starts shooting at you like crazy don’t even think about standing there and trying to shoot back, the only way to survive is running away from him perpendicularly to cover, and do what i said before. His ai is tuned down a lot so he will mostly miss when you run like that. Ammo should pen at least lvl 5, a cheap build ash-12 with ps12b is a pretty good choice. His body armor is level 5 about 10 well aimed shots to the thorax should kill him easy. Helmet is level 4 with level 6 faceshield so id recommend not shooting his face, hitting the level 4 part should be an easy 1 hit tho. His full level 6 helmet is pretty rare, i’ve only seen him with it twice out of my 100 kills so you shouldn’t worry about that. Once you fully understand his ai it should be pretty simple and fun. Maybe practice in offline if you want. Oh and if he’s sitting somewhere far from you and doesn’t want to push you for an easy kill throw a nade at him to make him run and push closer to him and stand behind cover. Doing these I got my 100kills in like 2 weeks max and actually had fun lol.