Mechanic — survive Factory + 2 weapons

Mechanic is the weapons-modding trader and one of the most important faction unlocks for Savior — almost every Savior chapter touches him. Talk, then survive/run-through Factory. Factory is a CQB meat-grinder — small, dark, full of close-range PMCs. Bring a shotgun or SMG, expect to die at least once, and just run-through if combat scares you (extract via Gate 0 or Office Window). The 2 FIR weapons can be any weapon type — even Makarovs from dead Scavs count. Pull guns off Scav corpses on Customs/Reserve raids and bank them.

Critically, ask Mechanic about the downed plane during this chapter — that dialogue opens Falling Skies, the next major Savior chapter. Don't skip the dialogue option. Unlocks Prapor + Woods.