Bug with earthmover and 7-4's challenge

[text_offender]

After completing the level for the first time, I assumed that you would need slam storage to do the challenge. I used it to get up into the room where you fight the core but when I got there only the core was loaded in. I shot at it a couple of times and then the lasers turned on and it rapidly died. I was able to complete the mission without fighting security this way but the challenge didn't get completed (I have since done it the intended way).
Anyway, after getting that high up on its body you can just clip through the walls into the room. Idk what triggered it to die in the way that it did though.

[TheGlassPistol]

there is a thing powered by the blue railcannon (like the one in 1-2) and it activates a crane that lets you into the belly.

[Glitchkat10]

There used to be a bug similar to this called the "Lobotomy" where you would go to the head of the Earthmover, it would use it's lasers, and promptly kill itself.

Just wait for a hotfix...