If you've ever played Natural Selection or Savage, you should get this pretty easily.
For those that haven't, the idea is that one player on the team (the commander) is playing and RTS (top-down strategy game), and all other players on the team are his "units".
It would work as follows:
- Commander has no character/gun/etc
- Commander's view is at a set downward angle, and WASD moves the screen up/down/left/right
- Voxels seen would be based on what your players have seen/are seeing. You have vision of any enemies that your players currently have vision of, and if an enemy leaves vision, a marker/blip is created at its last location, which will fade out over time. Terrain wouldn't be updated until a player sees it.
- Tunnels/underground spaces would be visible as dashed lines, or the commander can choose to hide all blocks above a certain height.
- Left click/ drag click would select one of your players
- Right click would give an order to the selected player/players. Right click location: move order. Right click enemy player: attack order.
- For the ordered player, it would appear as a large partially visible arrow/target with a direction indicator if not facing.
Additional functions/abilities:
- Build tower/wall/trench/tunnel at location. Creates a transparent building icon/beacon at the target location which only your players can see. You can right-click it to order a selected player to go build it. Hotkeys: Build, Tower, Wall, Trench, Tunnel. For wall, trench and tunnel, you can click-drag between two points. The blueprint/icon/beacon must be manually removed by the commander. Only a few would be allowed at a time and not within a certain distance, due to spam considerations.
- Artillery.
- Give players general orders/behaviours: attacker, defender, builder, sapper, stealth.
- Mark structure. Target a location to mark it as a structure, which will show up as an icon for all your players. You can also issue right-click orders to it, telling your players to destroy (if occupied by enemies) or occupy (if empty or occupied by friendlies).
- Supply drops. Drop ammunition, health packs, blocks, alternative weapons for your players. This would have a lengthy cooldown/cost.