Posted 27 May 2013 - 08:41 PM
Your question has been answered, but I just wanted to add: After completing Vertical Bird, the Hydra spawns under the hut next to the Rustlers hut. Also, the large air vehicle garage can only store 4 despite its large size. Store more than 4 and some will vanish. Additionally, a jet-pack spawns after Green Goo, adjacent to the save point building. Upon completion of the Up, Up & Away mission, the Leviathan loses its hoist. The Thomas the Tank Engine spawns on the marking near where the Stunt Plane spawns; the Leviathan spawns adjacent to it. However, (as pointed out), they never spawn at the same time. You will find an Uzi amongst the rubble adjacent of the large garage.
Just thought you needed this information, seeing as you seem new to the game.