Tunnel warfare

NVA/VC tunnels trade daylight sightlines for burrowed mobility—you spawn nearer contested sectors whenever squads sweep clay safely. Start with our faction dossier, stack Engineers when demolishing chokepoints, and assign rear-security kits so random satchels do not erase stacked pushes. US counterplay hinges on coaxing occupants into daylight: layered grenades outlined per map inside map indexes, helicopter overwatch from rotary doctrines, mortar smoke arcs from our mortar playbook, ferries pressured by patrol boats summarised inside river warfare. If exits stay denied too long manpower bleeds stack—rotate spawns proactively instead of reinforcing lost queues.