Hey everyone, this achievement is definitely a pain but here's a few tips and a very good video from PS4Trophies:
1.While going for this breathe, it will help relax your mind.
2. If you've been trying this for a while and feel like you're going to hit something, take a break from the game, watch a movie or play a different game. Come back with a clear head. It took me 4 tries, 2 hrs each try.
3. I know there's a lot of guides and videos for this already and I've watched them all but the one I'm posting below really helped me a lot with step by step voiceover. I followed it to a t, pausing and playing while practicing every section before really getting into it.
4. You can just use a shotgun and arc grenades(as the video proves). You don't have to use the EPG If you feel like switching to a weapon during the gauntlet burdens you a lot(I know I forgot a couple of times to switch on certain sections and it messed me up). It was only in my achievement run that I used only the shotgun and arc grenades so I didn't have to think about switching to EPG.
5. If you feel like you're moving too fast or thinking ahead pause the game, breathe. View the video, go over the section you're at come back clear headed and focused on the section your in.
One last thing, if you mess up or at the end and don't feel you'll make it, just pause and restart, don't finish because your ghost pilot will follow you the next run and if you don't like being distracted then that's what it'll do if you finish.
BTW, my finish time was 33.50
Video not mine, Credit to PS4Trophies.