[@Kiso] and [@Feisty-Pants]
Please tell me you guys don't have those stupidly psychotic COs, who give you the most impossible of tasks, making sure you fail, and then sending you out to retry it until you suceed(impossible, try running 1km in under five minutes with that gear) or you throw up and/or black out.
Pretty much what Kiso said. Doing a 10-15 mile march however, that does happen.