# Battle Event ### Death Rate In every deadly fight your team has to involve, there will be a certain percentage that there will be sacrifices. * The higher the total health and defense of the squad, the lower the sacrifice rate will be * The higher health of the NFT, the lower the sacrifice rate will be * Once the NFT is dead, it will be vemoved and there is no way to revive the NFT anymore {% hint style="success" %} **Death Rate is reduced to 0% in the first two days after the main-net releases** {% endhint %} ### Double Reward In each fight, there will be 1 chance that you will get double the amount of reward. This ratio is based on your squad's Luck score. **Example**: You complete Map Cannae and get 0.17 BNB, but for Double Reward event you will get 0.17\*2 = 0.34 BNB {% hint style="info" %} Improve your luck points to increase your chances of getting double rewards {% endhint %} --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://world-war-4.gitbook.io/welcome-to-gitbook/gameplay/battle-event.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.