diff --git a/CHANGELOG.md b/CHANGELOG.md
index 8f782d00a..9751b8faf 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -22,6 +22,7 @@ and this project does **not** adhere to [Semantic Versioning](https://semver.org
- Add behaviors button now opens towards the top.
- Simulated regions can now send patients to any hospital. The hospitals tab was removed.
+- The assign leader behavior now prioritized vehicles instead of gfs. Custom command vehicles can be set in the frontend.
### Fixed
diff --git a/frontend/src/app/pages/exercises/exercise/shared/simulated-region-overview/tabs/behavior-tab/behaviors/assign-leader/simulated-region-overview-behavior-assign-leader.component.html b/frontend/src/app/pages/exercises/exercise/shared/simulated-region-overview/tabs/behavior-tab/behaviors/assign-leader/simulated-region-overview-behavior-assign-leader.component.html
index 5aa889b44..ac9cad531 100644
--- a/frontend/src/app/pages/exercises/exercise/shared/simulated-region-overview/tabs/behavior-tab/behaviors/assign-leader/simulated-region-overview-behavior-assign-leader.component.html
+++ b/frontend/src/app/pages/exercises/exercise/shared/simulated-region-overview/tabs/behavior-tab/behaviors/assign-leader/simulated-region-overview-behavior-assign-leader.component.html
@@ -1,9 +1,64 @@
-