Originally Alec does light missions, mostly destruction of Nostra property (like a vehicle created from Nostra and stolen IES technology), but Nostra hijacks the "Weapons Van" and an Interceptor, and Alec is forced to destroy it. Eventually, the G-6155 Interceptor receives an upgrade (and a change of paint) to the G-6155 Interceptor II, complete with an EMP Launcher, Scanner, and a shorter Turbo lag time. Nostra's schemes become more dangerous, and Alec finds himself returning to most of the previous Nostra bases for more intense missions such as destroying weapons of mass destruction.
Alec begins by performing simple missions against Nostra's property (like a vehicle combining his and stolen IES technology), but as the story progresses, he faces increasingly complex challenges, including protecting himself from Nostra's more sophisticated schemes and ultimately confronting him with weapons of mass destruction.