THINGS TO POINT OUT!!! -Locke's shields and health are damaged -Chief can been seen grabbing a rock (at 0:40 I believe.) -Ship in the sky My thoughts? Chief did something...made a lot of things blow up. Locke and chief fought. Locke was hurt, chief was shot. Theory #1 I think this is what will go down- Locke has let his guard down, he's acting kinda cocky. Chief grabs a rock, is able to stun locke and close the distance before locke can recover. Pretty fair fight (As Chief is only able to use one arm) but I think Chief would win. I don't think either of them will be killed. A lot of people have pointed out that locke may be brainwashed or tricked into thinking chief is evil. After the possible fight that I explained above, I think chief might make locke come to the realization that chief isn't evil. Things would really escalate from here.. Theory #2 It may be possible that locke is a good guy, is doing the right thing, and is completely aware of who chief is. The fact that he was referring to the statue of chief, and chief himself as two different people gets me thinking... Is the "Chief" in the video an imposter? Maybe a replacement after the real chief's disappearance? Who knows.... UPDATE! THOUGHTS ON SECOND AD! Things to point out- -Chief's motion sensor identifies locke as a friendly -Locke's suit is sparking and malfunctioning, and his fancy lights are flickering I find it ironic that locke has "fallen" before chief. Literally... Theory #1 I think this could possibly end up with locke and chief teaming up.