Quick answer
Mission essentials
- Tunnel networks are an NVA faction mechanic
- They support surprise attacks and forward pressure
- Placement should serve the active sector
- Live balance values may change
A faction-defining system
The official feature overview identifies extensive NVA tunnel networks as a way to gain the upper hand through surprise attacks. Their value comes from creating team pressure, not hiding one player.
Treat numbers as versioned data
Build limits, timers and balance values can change after launch. Verify exact live values in the current game and patch notes before building a fixed strategy around them.