: I've always felt that Cortana and the Master Chief are incredibly gullible in
: Halo 4. 343 had to figure out some way to release an ancient evil--and of
: course the Master Chief must be the one to do it--but really? Who puts a
: communication relay at the center of a planet, and then surrounds it with
: shields and suspends it over a giant blender? Derp.

It was painful to watch.

When Infinity couldn't make out what Cortana was saying she could just have repeated, "Trap!" Until they realised they were in danger.