"You were at the Decepticon base for days. I don't understand how you were unable to obtain specific coordinates or find some way to record the location more concretely."

Which was not entirely true, it was very easy to imagine why that didn't happen considering who he was speaking to. Continuing to berate Rodimus for his poorly executed, unsanctioned plan wasn't going to get them anywhere at this point, especially after his time in the brig, but that wasn't going to stop Magnus from attempting at get a least a few points across.

He started walking toward one of the small hills for some higher ground, scanning their surroundings critically.
"Even so, a Decepticon vessel of that size should be putting off at least minimal energy readings. I imagine we should have run into some sign of it by now."