> For the complete documentation index, see [llms.txt](https://teamzwar.gitbook.io/teamzwhitepaper/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://teamzwar.gitbook.io/teamzwhitepaper/tiers/mission-mode-and-rank-up.md).

# Mission Mode and Rank Up

To understand how Mission mode works to raise **TIER** we must know that the higher our TIER, the more difficult it will be to get chests of a **TIER** greater than yours at the end of the game, this goes by probabilities:

* **TIER 1, 2:** 18% chance of a chest with item (character, ability, weapon) of **TIER Greater**.
* **TIER 3:** 12% chance of a chest with a **higher TIER item**.
* **TIER 4:** 8% chance of a chest with a **higher TIER item**.
* **TIER 5:** 5% chance of a chest with a **higher TIER item.**
* **TIER 6:** 3% chance of a chest with a **higher TIER item.**
* **TIER 7:** 1% chance of a chest with a **higher TIER item.**

Keep in mind that failing to successfully complete a mission and dying more than 2 (**kills> 2**) times **will not give you anything**.