The Type 052D carries a forward Type 730 gun system and an aft HHQ-10 close-in missile launcher. Using different weapons broadens the defensive options, but one of each provides no duplicate mount if battle damage or mechanical failure removes a system. The case for fitting two of each is that surviving mounts could preserve coverage across the ship's arcs. Statistical peacetime availability alone does not establish how well that coverage would survive combat damage.
Notable Point · 1:19:47-1:22:02
Type 052D layers close-in weapons without duplicating them
Combining a Type 730 gun with an HHQ-10 missile adds defensive layers, but one mount of each still leaves no like-for-like reserve after a casualty.