This idea may seem a bit far fetched as it is, but bear with me. This game is aiming to be a simulatior, and since I've played the Dayz mod, and now into the Dayz standalone, I'm noticing that bag weight does not affect running speed. Also I'm noticing that any melee weapon short of an axe is incredibly weak ingame, So imagine this... Muscles. Within the game, with the right nutrition (E.g eat a lot of meat in-game to get those proteins, maybe add protein shakes as a consumable, a constructable gym), you build muscle, the muscle you build would affect your characters build, make you look more bulky obviously, and would also Affect the speed at which you run with a lot of gear (Cause I am expecting bag weight to be implemented) and the melee damage you output. Nowto move onto the nutritional information more in-depth. Energy drinks would more increase running speeds, and give temporary boosts. While foods high in carbohydrates would give more energy to your player to allow him to maintain a higher speed run longer. You could also get vitamins from foods. That leads to another cool feature that could be implemented, scurvy. When your player hasn't had access to healthy foods rich in vitamins, he gets sick. I could have made this much more indepth, but I didn't want to make it a massive read. Thoughts? Questions? Criticism? Yes I am a gym junky.