The headquarters oversees logistics within the Hezbollah terrorist organization, and is in charge of budgeting and management of it's various units in the organization.

Husseini played a crucial role in weapon transfers between Iran and Hezbollah and was responsible for distributing the advanced weaponry among Hezbollah’s units, overseeing both the transportation and allocation of these arms.

Additionally, he was a member of the Jihad council, Hezbollah's senior military leadership council.