Highway 1
Highway 1 is the start of an unfinished highway that runs underneath a large mountain range within Magadane territory.
Overview
Highway 1 was the Pacific Federation Highway Office's most ambitious project. A Transnational roadway linking Magadan to Byzantium.
History
Highway 1 was constructed sometime after Magadan became a Federation State under the supervision Pacific Federation Highway Office. By the time the Cascadian Conflict was underway, it was left unfinished, but its road system AI was already installed through out the highway tunnel.
During the CIF Invasion of Magadan, Cascadian Marines set up their command post near one of Highway 1's planned exit ramps and had patrols set up with in the massive manmade cavern. Section 4-4 used it as a makeshift transit corridor underground to spy on the command post. One of the members of Section 4-4 jokingly said that "the tunnel was big enough that you could fly a plane through there", which inspired a daring mission.
Driver was selected for the mission due to his performance in Magadan. (If chosen a two-seater, Driver drags along Eye-Tee despite her protests and extreme reluctance.) Despite the numerous Cascadian Sentries and unfinished construction in Highway 1, Driver successfully flew through the Highway (to Eye-Tee's surprise) and destroyed the Cascadian command post, allowing for Section 4-4 to assassinate the Top Brass of the invasion (excluding Faust).
Behind the scenes
In cut/unused dialogue for Frontline-59, a reason was given for why the Cascadians did not use the highway as a alternative solution of advancing the front. Many of the investors for Highway 1 was Cascadian, and they did not want this potential investment to become a battlefield.
Trivia
Game files credit Mikell Dover as the public announcer AI's voice actress (MikellHighwayM4-XX.ogg), shared with Comic.