hybrid classes

A Pilot that has specialised in multiple roles. A Pilot can advance into a Hybrid Class once they have taken 6 Core Abilities, including all 3 Abilities linked to the Hybrid Class they have chosen. For example the Engineer must take all 3 Abilities in the Forging Tree before advancing into the Fabricator Class. Once a Pilot has chosen their Hybrid Class they cannot advance into any other Hybrid Class or Advanced Tree. They also can no longer choose Abilities from their Core Class that their Hybrid Class cannot learn. For example if the Engineer advances into the Fabricator Class they cannot take any Abilities from the Mech-Tech Tree, though they can retain any Abilities they have previously picked from that tree.