This research aims to emphasize the operational importance of avionics subsystems integrated into helicopters, primarily used for assault purposes, such as the Helmet Mounted Display System (HMDS) and Turreted Gun Systems. It addresses the functional capabilities of HMDS in target detection and aiming, as well as the defense and engagement capabilities of Turreted Gun Systems against various threats. The focus of the research is on evaluating the parametric data, such as the dispersion of the Turreted Gun Systems and the targeting performance values of the HMDS, during their use together. It also assesses the transmission of this data through a Kalman filter before being sent to the Turreted Gun Systems to mitigate platform-induced disruptive factors. The findings help us understand the profound impact of technological advancements in helicopter avionics systems on operational effectiveness. Additionally, this study sheds light on the impact of dispersion values on hit performance during usage. It is assessed that the proposed method in this study will result in more stable data, and that controlling the Turreted Gun Systems with this stable data can enhance hit performance. The study can be further developed by examining subsystems with different performance characteristics and filtering methods.