"All the Things You Are", Mike Resnick

NT Jim Baen's Universe October 2006 - science fiction
A man saves a girl by confronting armed robbers and is mortally wounded. This wasn't the first time he put himself in such danger. Another man had repeatedly risked his life playing the hero too. A spaceport security man learns that both men saw service in the Patrukan War on the deserted planet of Nikita. What affected the battle survivors on Nikita? The security man travels lightyears on his vacation to find out.

This is a readable story, but, in my opinion, hardly groundbreaking. Plus, if you know something is an illusion, even if it's a pleasant illusion, why would you fall for it?