Fighting a Battle Any battle that lasts more than 10 seconds will cost Fatigue points as follows, at the end of the battle: No encumbrance: 1 point Light encumbrance: 2 points Medium encumbrance: 3 points Heavy encumbrance: 4 points Extra-heavy encumbrance: 5 points This is a cost per battle, and not a cost per 10 seconds of battle! The GM (or adventure writer) may assess extra Fatigue for a very long battle - but a fight should run at least 2 or 3 minutes (120 to 180 turns) before extra Fatigue costs would be realistic.