There are two possible interpretations of how imipak works.
1/ It zaps everything in the set range. This appears to be the interpretation when Coser explains the weapon's functions to the Clone, when Servalan kills Coser and when Servalan is about to kill Blake, Avon and Gan - and is stopped by Rashel who has the marking gun.
2/ It can be set to zap a specific target. This interpretation makes sense when Servalan kills the guard but leaves Travis standing, but at not otherwise ! As Dana points out there aren't enough buttons for it to behave with this level of sophistication.
Personally I think interpretation 1 is correct and Travis' survival was due to bad direction. But then Weapon is the best example of the technological impasse plot where both our heroes and the Feds race to gain some kind of uber-weapon which will end the conflict decisively. Of course this can't be allowed to happen and so the main interest is elsewhere.
The real point of Weapon is to set up the idea that Blake wants to blow up control and that Travis' mental stability is somewhat doubtful. Just as the real point of Orbit is Avon hunting Vila with a gun, or that the real point of Sand is Servalan & Tarrant. Frankly I think they did the genre to death in the fourth season. Hands up who thought they were ever going to end up with the Tachyon funnel ?
Stephen Date
____________________________________________________________ Do You Yahoo!? Get your free @yahoo.co.uk address at http://mail.yahoo.co.uk or your free @yahoo.ie address at http://mail.yahoo.ie