I did my first one not really knowing how to train for the physical part. As a CQB instructor, I felt my shooting was on par. I got smoked on my first one, finishing in the bottom five.
Since the first time, I have changed my workouts to a lot of “strong man” type movements: farmers walks with a trap bar, kettle bells, dumbells, etc. Started doing sprints for speed (well, I am not speedy, so, just pushing for better endurance). I was able to aquire too heavy sand bags from a former co-worker, try to use them often.
I have trained my all my life( military, SWAT, martial arts, etc.) but when I showed up for my second one, I realized, I was weak as a baby compared to the elite division, Damn, that is some strong men and women.
One of the worst mistakes you can make in the tactical world is to lie to yourself about your abilites, you willl just end of getting yourself or someone else killed. So, I realized I was lacking in strength and have tried to improve by switiching to large power moves and learning how to pick up heavy GORuck bags.
On my last one, I placed in the middle of pack, so some improvement. My shooting is fine, but, still weak physically compared to the others there, but, I go to challenge myself, not for first place, but, to always see improvement.
It is a great way to test your tactical and physical skills. The Tactical Games IG page is excellent and shows what a great community the competitors are.
Give it a try.