All secrets in Operation Serpentine raid in Delta Force
Every mission in Delta Force has at least a few secrets for you to discover and get free rewards. In the Operation Serpentine raid, there are four secret crates with weapon skins, including a good-looking blue Vector skin.
To claim these crates, you must extract them at the end of the raid. Failing results in you losing these crates and corresponding rewards. Before you proceed, equip enough gear to have space for the crates in the inventory. There are four total crates, and each is 2×2.
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