# Squad Maps & Game Modes (`LayerRotation.cfg`)
Choose which maps and modes your server runs by editing its layer rotation.
---
## 1. Open the Rotation File
1. Go to the **Files** tab and open `SquadGame/ServerConfig/LayerRotation.cfg`.
2. In `SquadGame/ServerConfig/Server.cfg`, make sure this line is present so the server uses your list:
```text
MapRotationMode=LayerList
```
---
## 2. Add Layers (one per line)
Squad uses precise **Layer IDs**, not display names. Put one per line:
```text
Yehorivka_AAS_v1
Narva_RAAS_v1
Gorodok_Invasion_v1
Harju_AAS_v1
BlackCoast_RAAS_v1
```
The **game mode** is the suffix in the layer name:
- `AAS` / `RAAS` — Advance and Secure (standard capture-point objectives)
- `Invasion` — one team attacks, one defends
- `Skirmish` — small, infantry-only
- `Seed` — low-population layer for filling the server up
---
## 3. (Optional) Choose Factions
Append two faction tags after the layer to force specific armies:
```text
Yehorivka_AAS_v1 USA RGF
Narva_RAAS_v1 BAF VDV
```
Common tags: `USA`, `USMC`, `RGF` (Russia), `VDV`, `BAF` (Britain), `CAF` (Canada), `MEA`, `INS`, `MIL`, `PLA`.
---
## 4. Apply
1. Click **Save Content** on both files.
2. **Restart** the server from the Console tab.
> Full, up-to-date Layer IDs are listed on community references such as squadmaps.com. If a Layer ID is misspelled, the server skips it — so copy them exactly.