Soldiers from all over the country descended on Camp Bullis on Wednesday to take part in a regional Best Warrior competition.
The competition is set up to simulate battle conditions.
One particular scenario had soldiers manning a checkpoint at the entrance of a city.
"They have to set up and check -- I guess you would say the civilians -- that's coming in. We also have to check vehicles as they are coming in and make sure they don't bring in any (improvised explosives) inside the city," said U.S. Army Sgt. Donald Walton.
The field of competition is set up to be as realistic as possible -- in Wednesday's case: a city in the Middle East.
They call it a "competition," but it's not just all fun and games.
The purpose of it is deadly serious.
"It's not mainly for competition. They're actually training also, because as soldiers, everybody wants to show that they're the best and try to compete with each other so while they're doing the competition, they're also getting training," said Walton.
The soldiers in the competition say it works.
"It really trains us to be the best at what we do and the best under fire," said U.S. Army Sgt. Garrett Kelly.
The winners of this region competition will go on to a nation competition in Virginia to determine the U.S. Army's "best warrior."