Stealth Force is a separate, intermediate transformation configuration, it allows the Autobots and the Decepticons, to access their weapons in vehicle mode by partially changing form, while retaining the mobility of their vehicle form. It also grants them added protection in this form.
The Stealth Force Mode appears as a half-way transformation with their vehicle mode expanded, revealing weapons and other robotic parts. Stealth force also allows the vehicle's wheels to swivel independently, allowing the vehicle to move in any direction. The vehicle is also able to make limited jumps while in stealth force mode.
Dark of the Moon
Bumblebee uses his stealth Force mode to destroy the entrance guard post at an illegal power plant in the middle east. He launches cluster bombs in to the air, after he drives through, they strike the post.
Later, the Autobots run into the Dreads while escorting Sentinel Prime to NEST. Bumblebee and Sideswipe use their Stealth Force modes against them on the highway heading into D.C. When Dino catches Hatchet with his hooks, Bumblebee and Sideswipe open fire on him, launching missiles and firing their cannons, shredding the Dread, before Dino slams him onto a car. After using their ability to jump to avoid crashing into other vehicles, the two revert to vehicular mode.
Dark of the Moon
It's a prominent part of the Dark of the Moon game-play. It gives the Transformer character heavier weapons and armor to endure and survive the battles. Both Autobots and Decepticons have the Stealth Force Mode. They often used this mode if it's their last resort against the enemies.
- There are theories spreading about the Wreckers' appearance. One theory is that they never leave their Stealth Force Configurations. This would explain their "Weaponized" look.
- An explanation for the name of this mode is that it combines the stealth aspect of the vehicle mode disguise with the force aspect of the robot mode's weaponry.
- Only god knows how making explosions, having rocket launchers, machine guns and loud things on you is "Stealthy".