I'd like to ask about the meaning of the verb 'to rattle' in the following passage.
In the controlled conditions of practice, everything was mostly spicy, with only occasional crackups like what happened with Spahiu. But in the chaos of the battlefield the EW1s were pretty much regularly rattled, and as soon as that happened, they stopped working.
The author talks about energy weapon. But I'm not sure what 'rattle' mean in this context. Does it mean something like 'shake'.
KLPNO, what are EW1's, people or weapons?