A military vehicle includes a chassis, a front axle, a rear axle, an energy storage system, an engine, a transmission, and a motor. The chassis includes a passenger capsule, a front module coupled to a front end of the passenger capsule, and a rear module coupled to a rear end of the passenger capsule. The passenger capsule defines a tunnel extending longitudinally along a bottom thereof. The front module includes a front subframe assembly. The rear module includes a rear subframe assembly. The front axle is coupled to the front subframe assembly. The rear axle is coupled to the rear subframe assembly. The engine is supported by the front subframe assembly. The transmission is positioned within the tunnel and coupled to the front axle and/or the rear axle. The motor is at least partially positioned within the tunnel and positioned between the engine and the transmission.