NERF Legends
35 Achievements
PS5
Boot Camp
Complete Training
67.7%
How to unlock the Boot Camp achievement in NERF Legends - Definitive Guide
Simply complete the training in single player. There is 2 stages and it takes about 5-7 minutes to do the whole thing.
This simply requires you to go to the singleplayer mode and complete both the movement and combat trainings. This should take all of 10 minutes or less.