遇到障碍了

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《JK II Jedi Outcast》cairn_reactor这关的秘密地点在哪儿？

英文攻略上说得含糊其辞：

Go through the door to enter a large room of undeterminable purpose. There's
another of the small walkers here, which you can lure back to the door and
shoot with the DEMP to destroy easily. Snipe the troopers above you, then take
the floating platform around the room. All is not well in Metropolis, however,
as a pair of troopers at the far end will start pelting you with rockets from
their handy Merr-Sonn Portable Missile System. Snipe them before the platform
crashes, if you can, and start jumping along the structures attached to
the wall to reach the dock on the other side. The secret area for this level is
located here - follow the path around the corner to find a grate.