Which capability is enhanced for targeting and tracking moving targets in Block 4?

The increased ability to target and track moving targets in Block 4 primarily comes from advancements in electro-optical targeting systems. These systems provide high-resolution imagery and improved tracking algorithms, enabling the aircraft to lock on to and engage moving targets effectively.

The GAU-22/A gun, while an important weapon system, is not specifically enhanced for the tracking and targeting of moving objects as part of the Block 4 upgrades. Instead, it's the electro-optical targeting pods that can significantly enhance situational awareness and precision in dynamic environments.

Long-range missile systems also contribute to overall targeting capabilities but are not solely responsible for the enhanced tracking of moving targets. These systems rely on guidance mechanisms that often require precise targeting data, which is supported by the advanced capabilities of electro-optical systems.

Conventional ballistic targeting methods typically do not provide the accuracy or adaptability needed for moving targets, which is why modern upgrades focus on electro-optical technologies. These advancements reflect a wider trend in military aviation to leverage high-tech sensors for greater effectiveness in combat scenarios.