I finally figured out how to lower the 'drawbridges' to the Volk general's drydocked cargo ship. But I didn't have time to exploit them and reach the villain. I will try again tonight, though I'm getting a little tired of blasting a hundred thugs (or so it seems) every time I assault the docks.
Tip: For those who have trouble when faced by large numbers of enemies, I have discovered a simple trick that will help you take them down without suffering significant damage yourself. For this to work, you need cover higher than your head between yourself and the thugs, and a fully loaded Colby EAR50. It wouldn't hurt to have maxed-out shooting skills as well.
It works like this: Aim in the general direction of your enemies, maybe down a bit. Hold the left trigger and jump. While in the air, make sure you get a lock on an enemy. Once down, target the enemy's head and wait for the targeting reticle to shrink all the way. If the target is a long way away, activate the zoom and max it. Next jump, and when your target appears in your field of vision, shoot. A single headshot will usually do it. Rinse and repeat until all the enemies are gone.
By the way, this technique also works with grenades (except for the body-part targeting and the zoom), and will help you boost your explosives skill.