Well, you don't need the smartlink to be internal. You can just toss it into a pair of glasses/contacts/goggles and be good. Muscle Toner (Bioware augmentation for Agility) would make you more accurate.
You can do the same thing with the Increase Attribute (Agility) spell effectively, but you'd want a sustaining focus so you don't take penalties for using it. Of course, on the upside the spell would let you do it to others also if you were in a situation where their expertise is more important to you (like boosting the ninjas agility to tumble through the alarm's laser grid), but depending on how high their attributes are this might not be viable (if they're maxed or high enough that it would require ridiculous force/hits to raise).
Enhanced Aim can quicken the process of sniping (it reduces the range category by one per hit, meaning a force 3 with three hits will make extreme range shots act like short range shots) by negating the need to use a take aim action for imaging scopes. It, likewise, can be used on team mates to boost their abilities as well as your own, but you'd probably want a sustaining foci for it to be too awfully useful.
Depending on how much your GM tacks on penalties, Hawkeye can be useful for acquiring targets and seeing them well enough to use your LOS spells.
Spatial Sense can be useful for doing recon and finding a good spot to post up that is secure and well hidden (and for keeping nasty surprises from popping up.
Area Though Recognition can be nice for quickly scanning a crowd to figure out if you've been noticed/are being tailed after the job.
Catfall (or Levitate or Slow from war) can help get out of position fast, if you take up posts with a height advantage like most snipers.
