Here is the full list of all 90 Range Royale achievements.
Earn Diamond Rank in Novice Target Mode
Earn Diamond Rank in Expert Target Mode
Earn Diamond Rank in Elite Target Mode
100% Headshots in Target Mode
Achieve 100% perfect rating in Target Mode at Novice Difficulty
Achieve 100% perfect rating in Target Mode at Expert Difficulty
Achieve 100% perfect rating in Target Mode at Elite Difficulty
Complete 500 Rounds of practice in Target Mode
Earn Diamond Rank in Novice Bot Mode
Earn Diamond Rank in Expert Bot Mode
Earn Diamond Rank in Elite Bot Mode
100% Headshots in Bot Mode
Achieve 100% perfect rating in Bot Battle at Novice Difficulty
Achieve 100% perfect rating in Bot Battle at Expert Difficulty
Achieve 100% perfect rating in Bot Battle at Elite Difficulty
Complete 500 Rounds of practice in Bot Battle
Earn Diamond Rank in Novice Zombie Mode
Earn Diamond Rank in Expert Zombie Mode
Earn Diamond Rank in Elite Zombie Mode
100% Headshots in Zombie Mode
Achieve 100% perfect rating against Zombies at Novice Difficulty
Achieve 100% perfect rating against Zombies at Expert Difficulty
Achieve 100% perfect rating against Zombies at Elite Difficulty
Defeat 120 Zombies in one match
Complete 500 Rounds of practice in Zombie Mode
Earn Diamond Rank in Novice Speed Shooter
Earn Diamond Rank in Expert Speed Shooter
Earn Diamond Rank in Elite Speed Shooter
Destroy 100 Discs in a single round in Novice difficulty
Destroy 100 Discs in a single round in Expert difficulty
Destroy 100 Discs in a single round in Elite difficulty
Achieve 98% or better in Speed Shooter Mode at Novice Difficulty
Achieve 98% or better in Speed Shooter Mode at Expert Difficulty
Achieve 99% or better in Speed Shooter Mode at Elite Difficulty
Complete 500 Rounds of practice in Speed Shooter
Earn 5,000,000 points in any combination of practice modes
Complete 1000 practice rounds in any mode
Earn Gold Rank in all modes at Novice difficulty
Earn Gold Rank in all modes at Expert difficulty
Earn Gold Rank in all modes at Elite difficulty
Earn Diamond Rank in all modes at Novice difficulty
Achieve 95% accuracy with iron sights in Novice difficulty
Achieve 95% accuracy with iron sights in Expert difficulty
Achieve 95% accuracy with iron sights in Elite difficulty
Achieve 100% accuracy with iron sights in Novice difficulty
Achieve 100% accuracy with iron sights in Expert difficulty
Achieve 100% accuracy with iron sights in Elite difficulty
Achieve 95% accuracy with scope in Expert difficulty
Achieve 100% accuracy with scope in Elite difficulty
80% sustained accuracy over the last 10 matches
90% sustained accuracy over the last 10 matches
95% sustained accuracy over the last 10 matches
97% sustained accuracy over the last 10 matches
99% sustained accuracy over the last 10 matches
You did it, you magnificent b*stard.
Complete 500 rounds with the M416
Achieve 100% accuracy with the M416
Achieve 100% accuracy with the M416 + holo sight
Achieve 100% accuracy with the M416 + 2x scope
Complete 500 rounds with the M9
Achieve 100% accuracy with the M9
Complete 500 rounds with the Uzi
Achieve 100% accuracy with the Uzi
Complete 500 rounds with the M421
Earn 1,000 points in any combination of practice modes
Earn 50,000 points in any combination of practice modes
Earn 500,000 points in any combination of practice modes
Complete 5 practice rounds in any mode
Complete 35 practice rounds in any mode
Complete 125 practice rounds in any mode
Complete 350 practice rounds in any mode
Earn Diamond Rank in Novice Sniper Mode
Earn Diamond Rank in Expert Sniper Mode
Earn Diamond Rank in Elite Sniper Mode
100% Headshots in Sniper Mode
Achieve 100% perfect rating in Sniper Mode at Novice Difficulty
Achieve 100% perfect rating in Sniper Mode at Expert Difficulty
Achieve 100% perfect rating in Sniper Mode at Elite Difficulty
Complete 500 Rounds of practice in Sniper Mode
Achieve 100% accuracy with the Kar98 + 2x scope
Achieve 100% accuracy with the KAR98 + 4x scope
Achieve 100% accuracy with the KAR98 + 8x scope
Complete 500 rounds with the KAR98
Achieve 100% accuracy with the M416 + red dot sight
Achieve 100% accuracy with the SKS + red dot sight