This challenge will be live from September 11th to September 18th 10am PDT.
You must obtain 75 kills in Team Deathmatch (found under Core modes) across any number of matches. You will also need to start and finish 15 complete games of Team Deathmatch.
GamerScoreM4STA has confirmed that Co-op vs AI does indeed not count for this challenge. I have not seen any reports of Social Quickplay or Competitive Warmup counting progress for this. If you receive progress for either of these modes be sure the comment below and I'll update the guide with a credit.
https://gearsofwar.com/en-us/community/whatsup-sept6-2018Featured playlists
Our Featured Playlists get even beefier next week with the introduction of new Versus Challenges!
For the remaining Featured Playlists of Season 4, you’ll have brand new challenges to take on and earn additional Heartbeat Weapon Skins (Plus a second chance at some Flaming Weapon Skins). Here’s a rundown of the remaining Featured Playlist schedule and associated challenges:
4XP TDM
Featured: Sept 11 – Sept 18
Challenge: Finish 15 matches of Public TDM and get 75 kills between 09/11 – 09/18 at 10am PDT
Reward: Heartbeat Retro Lancer, Flaming Retro Lancer
In addition to unlocking the challenge you will also be able to redeem some weapon skins for your efforts. After unlocking the challenge, visit the below link and login with your Xbox account that unlocked the challenge and click 'Claim Reward' under the appropriate spot.
https://gearsofwar.com/en-us/my-rewardsThis challenge rewards the Heartbeat Retro Lancer and the Flaming Retro Lancer (tied to the below achievement).
Any questions, comments, or concerns feel free to leave a comment below or shoot me a message here on TA.
~ Slayer