If you prefer to be a bit sneakier then how about allying yourself with the Romulans? You can also pick up Sela's Infiltrators and stealth around the tabletop looking for a key moment to strike!
Plots within plots are the key to running a Romulan Away Team. You'll want to avoid conflict until all of your ducks are in a row and you've got the best chance of delivering a critical strike. Whilst the Klingons feel like quite the straightforward instrument of destruction, the Romulans give me the feel of an Away Team that needs a bit of finesse to use.