THe simulations look like they might have been developed using the tech from Half-Life 2, but with terrible quality animations. If the simulations were highly immersive, I might freak out because zombies. They also look less realistic than sequences seen in a number of popular violent video games (some of which offer considerable applications to apply utilitarian or unutilitarian choices.

Telling people with no exp. on violent video games to play Mass Effect all the way through, and record all their choices, and hesitations might be interesting for the cost.