s&box GameManager Architecture: Multiplayer Player Lifecycle Pattern

Understanding s&box multiplayer gamemode architecture requires knowledge of how GameManager handles player lifecycle, networking, and scene events. The Facepunch Sandbox gamemode implements a sophisticated GameObjectSystem-based GameManager that coordinates player spawning, connection handling, and game events.

Key challenges developers face:

1. Properly implementing INetworkListener for host/client coordination
2. Managing PlayerData persistence across disconnections
3. Coordinating player spawn locations with events
4. Understanding the relationship between Connection, PlayerData, and Player components