The March Update Title update for Gears of War 4 has 11 achievements worth 500 gamerscore.
As a Scout, pick up 10,000 Power during active combat in one Horde match
Complete a public Versus Multiplayer match earning at least 5 kills with more kills than deaths
Get 5000 kills in Public Versus matches from March 2018 onwards.
In Versus, win 25 matches in Competitive playlists (Public Only)
In Private Horde, complete 50 consecutive waves on Hardcore without the team building fortifications
As an Engineer, build 10 fortifications you equipped a skill card for in one Horde match
Complete 25 consecutive waves of Horde Lite or Frenzy
Complete 25 consecutive waves of Horde Lite or Frenzy on Insane Difficulty
As a Heavy, add 50 ammo for launchers or Heavy Weapons in a Weapons Locker in one Horde match
As a Sniper, kill 30 Scions, Pouncers, DR-1s or Snipers with headshots in one Horde match
As a Soldier, kill 40 enemies from cover and have 100 Lancer kills in one Horde match