The paper is nice to read and it enhances the good qualities of the application and its approach. Anyway, I'd like to ask you about the superiority of a real experience and a virtual simulation. Could not a full immersion of 1-2 week with real people bring to the same results? Note that the game-based approach can be used also in "real simulations". Another risk of virtual simulations is that learners' knowledges are dependent from a specialist's knowledge and they inevitably see the culture through the specialist's eyes instead of experimenting it first person. Real simulation can also help to make team/fellow feelings and that can help soldiers in missions. Can your application run in multiplayer?