> ## Documentation Index
> Fetch the complete documentation index at: https://docs.alpha-relay.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Field-Device vs Relay Mission

> Choose the mission mode that matches how your team works.

In the pilot app, tap **Choose Mission Mode** and pick one of two buttons:

## Field-device mission

Use when one pilot captures the mission and local relay viewing is not needed.

* Available on **cellular or Wi‑Fi**
* Mission Overwatch is used mainly **after** the mission for review, reporting, and export
* Remote live still works when the pilot starts **Live stream (WebRTC)** from the app

Best for: solo operations, offline field work, missions reviewed later.

## Relay mission

Use when Mission Overwatch must connect to the pilot device **during** the mission over the local network.

* Requires **Wi‑Fi** on the pilot device (not cellular-only)
* Shows **Live Overwatch Screen** in Mission Overwatch for LAN video, telemetry, and command-side logging
* Remote live can run at the same time when configured

Best for: command-side viewing, live event logging from the browser, team monitoring from a local overwatch position.

## Quick decision

| Situation                              | Choose                                                |
| -------------------------------------- | ----------------------------------------------------- |
| One pilot, review later                | Field-device mission                                  |
| Command staff watch live on same Wi‑Fi | Relay mission                                         |
| Remote viewers over internet           | Either mode + **Live stream (WebRTC)** from pilot app |
| No Wi‑Fi at all                        | Field-device mission; sync when internet returns      |

<Note>
  Both modes can live stream over the internet. The difference is whether Mission Overwatch also needs the **local relay** connection during the mission.
</Note>

See [Connectivity](/alpharelay/connectivity-guide) for what requires internet vs local Wi‑Fi.