Here is the full list of all 60 H-Hour: Worlds Elite achievements.
Plant 50 Bombs
Plant 250 Bombs
Plant 500 Bombs
Defuse 50 Bombs
Defuse 250 Bombs
Defuse 500 Bombs
Extract 50 Hostages
Extract 100 Hostages
Extract 200 Hostages
25 C4 Kills
75 C4 Kills
150 C4 Kills
50 Claymore Kills
100 Claymore Kills
200 Claymore Kills
50 PMN Kills
200 PMN Kills
400 PMN Kills
50 Melee Kills
100 Melee Kills
200 Melee Kills
75 Headshots
250 Headshots
500 Headshots
50 MVPs
100 MVPs
200 MVPs
100 Assault Rifle Kills
750 Assault Rifle Kills
1500 Assault Rifle Kills
75 Grenade Kills
200 Grenade Kills
400 Grenade Kills
100 Large Machine Gun Kills
500 Large Machine Gun Kills
1000 Large Machine Gun Kills
50 Pistol Kills
200 Pistol Kills
500 Pistol Kills
100 Small Machine Gun Kills
500 Small Machine Gun Kills
1000 Small Machine Gun Kills
100 Shotgun Kills
300 Shotgun Kills
600 Shotgun Kills
100 Sniper Rifle Kills
300 Sniper Rifle Kills
600 Sniper Rifle Kills
Throw 20 Flashbangs
Throw 75 Flashbangs
Throw 150 Flashbangs
Throw 50 Smoke Grenades
Throw 150 Smoke Grenades
Throw 300 Smoke Grenades
Committed 20 Suicides
Committed 100 Suicides
Committed 200 Suicides
Get 100 Assists
Get 500 Assists
Get 1000 Assists