The MSA-0011[Bst］S Gundam Booster Unit Type Plan 303E "Deep Striker" is one configuration of the MSA-0011［Bst］ S Gundam Booster Unit Type. The unit was featured in Gundam Sentinel.

Technology & Combat Characteristics
The S Gundam Booster Unit Type Plan 303E "Deep Striker" features an advanced set of armaments; The platform on its back carries a long-range disk radome and a huge mega particle cannon of the same type used by Argama-class and Irish-class space warships. Its crew consists of a pilot and a radar operator, who are protected by two I-field generators similar to that of the Ex-S Gundam. The Deep Striker is also equipped with a beam smart gun, two improved beam cannons, an additional generator in its waist armor, and a multi-sensor pod that takes the place of its left arm and gives it enemy search capabilities comparable to those of an EWAC mobile suit.

Due to its heavy equipment, the Deep Striker has twice the weight of the original [Bst] version. Although the conformal packs attached to its leg booster units each include an extra thruster, as well as more energy supply connection points, the machine’s total acceleration is reduced by about 30 percent. However, the attachment of extra propellant tanks gives it a far greater operating time, and these tanks can be discarded once empty in order to reduce the machine’s dead weight.