The Command & Conquer: Tiberian Sun GDI campaign was to feature a mechanic where the player could choose the starting units that would be delivered by dropships. They were to dock at a unique structure called the dropship bay before which they would be delivered.
Both the system and the building were cut from the final release, but still exist in the game's data. The dropship bay was recycled for the GDI upgrade center. Producer Rade Stojsavljević said of the system:
Tiberian Sun‘s development had many challenging moments when features had to be cut for one reason or another. A perfect example of this was the ability to order a limited number of units through a drop-ship loading screen before a mission. This sounded like a great idea on paper and we had already coded it and incorporated it into the game. It wasn’t until we actually played with it that we realized it just didn’t fit and had to be removed.
The featured image shows a combination of the surviving graphics for the menu, showing how it may have looked.