The next absorbtion unit (AU) is to the northeast of the beacon. There are a few ways to get up there, mainly from the west or east sides. Lots of explosives up there, so watch out. Once you turn on the AU, there are a few Agi. Orbs around, including one to the south of the AU that you can get to by hopping up the sloped surface.
The second AU for the island is to the northeast, on a bridge. Use the red ledges directly under it to kill a few goons.
The last AU is to the far south, on the oil rig that you may remember from the first game. You’ll hit the pipeline that extends to it from the corner of the docks, just east of where your first mission was. There are a few Agi. Orbs along the rooftops, including one on the side of building at the corner and one on some tanks at the corner.
You can follow the pipe or swim out to the rig. A few enemies meet you, then more up ahead at the section section, and to climb it there are steps at the back – take the right corner. There are two orbs, one on the first part and another at the top of the crane on the second. There is another Hidden Orb at the very bottom, not hard to jump to from the water; even a hole above the orb where you can get back up.
There is one more orb that is harder to get to. There is a second crane above the stairs that connect to the rig. There are two ways to get to it: either jump from the AU point down to it, or use the beams to jump up to it, probably hugging closely to the corner where the crane extends.
Approaching the rig itself, you can use pipes a little lower to take the steps up, or just use the stairs so long as you avoid the opening in the middle. It’s a pretty tough fight to get up to clear it. The most of them should be to the far right corner at the stairs, so it’s better if you just jump up to the high ground, clear the upper areas and then pick them off below. You could even just hit the AU and take a dive (don’t miss) if you want. And yes, that’s the best way to exit the rig unless you missed any of the three AOrbs.
*NOTE: You should hit the next tier of Agility at 42 orbs, which for me was at the corner of the pier, but you should hit that at least now.*
Head north to the island, swimming if you want. There are a good handful of Agi. Orbs all over, and easy to get. Just be careful of the ground as freaks do show up after dark. There is also a Renegade Orb that you can get if you have over 42 orbs. There is even an Audio Log over to the right on the grass. There are about 10 orbs to find, and you can get into the silo by ground if you want to.
Finally, hit the crane, climbing up the red ledges. At the top, there is a Hidden Orb behind the little structure, then just go to the end and hop (safely) into the silo.
Carefully hit the bottom, just make sure you aim for the side platforms toward the bottom. This beacon is a little easier than the last just because there are less attackers, but they are more dangerous and come from different elevations. Grab from frags and reload first. When you turn on the beacon, take point on the ring above ground, that is where most of the spitters will post up.
Staying up here avoids the freaks attacking you, but it seems like they then go for the beacon, so if you stay up here too long feel free to toss a frag or two at the beacon. Some of the attackers will explode when they die, so not only keep your distance but also you can hit them with one bullet, so an automatic gun is best here. That’s about it, run around, jump up to ring to clear it every now and then, and it shouldn’t be too hard. Take the blue pad to get out.
