GDI research

GDI Research

After choosing GDI you are offered a pretty big research tree of various tech levels.

GDI Intel: The first research you will probably choose. It unlocks more research options and some Misc structures.

GDI Structures: Unlocked by GDI Intel you can research this for more structures like GDI Walls, GDI Doors and Autodoors (if Autodoors are researched), also unlocks multiple new floors and the GDI Weapons Factory.

GDI Armory I: Unlocks after GDI Intel and GDI Structures. This allows you to construct small firearms and armor suits at the Factory.

Defensive Structures: Unlocks after GDI Structures and Gun Turrets research, allows the construction of the Watch Tower so far.

Tiberblock Drug: Unlocks a new anti-Tiberium drug that can be crafted at the Factory.

Classified Information: Unlocked after GDI Intel, basically more GDI tech, only unlocks more research options and is therefore quite expensive while the others remain quite quick to research.

GDI Armory II: Unlocks after GDI Armory I and Classified Information, allows the production of Zone Armor, railgun and mobile artillery.

Advanced GDI Security: This unlocks after GDI Security and Classified Information, allows the construction of the Sonic Emitter and Juggernaut Turret.

Sonic Breakthrough: This research requires Classified Information, Advanced GDI Security and GDI Armory II. Allows the construction of highly experimental weaponry and structures.

-Sonic Inhibitors, smol and tall version

-Decrystallizer

-Sonic Shatterer, a handheld weapon

-Firestorm Operations Center

-Sonic Cores, items for construction of advanced weapons