Suppress Radar Base is the 7th mission of Air Combat. In their efforts to assault the enemy's vital infrastructure, loyalist forces have identified and located the anti-government army's main air defense and command installation. The ADRCS is defended by a regional SAM network, turning its immediate area into a killzone. The player's mission is to initiate a low-altitude approach through a ravine, bypass the killzone and eliminate the radar station. This mission is notable for being the one that introduced the "canyon flight" concept into the Ace Combat series.