Although it'd be kinda crazy to put Traitors on the same level of difficulty as Lings (Regarding objective wise), Traitors are alot more vulnerable than you think compared to Lings and Vampires whom have some very interesting and rather powerful powers; Ethereal jaunt for vamps, regen for lings etc.
Traitors are still your average person and it doesn't take alot of a laser gun to take them down depending on what they've bought.
I like the current system of one or two core objectives and then a escape/hijack/die etc. cause it changes your entire motive, if you have to escape and kill x person or steal x thing, you're gonna be stealthier and cover your tracks or do it at certain times, killing x person and dying gloriously? Well that's a big 'ol boom and hijack is well, hijack
To sum it up though, I like the current system as it's flexible, you're not forced through these hard objectives with 20 TC, but.. if you wanted to do more objectives for your Syndicate overlords, write a fax, emag the fax and send it their way, they might just reward you with extra 'cookie' points to help you with it.