[quote=ASTA]
Wouldn't it be easier to equip the walker with motion sensors, seismic sensors or a passive radar system?
[/quote]

Plus... SOME of the cameras obviously tracked Ysolda, otherwise making an attack against her would have been... what was the word? 

Metagaming.

As such, if THOSE lost track of her, logic dictates that the Mech's onboard computers would re-acquire the target using other cameras.

Or are we throwing logic out the window for THAT, too?