Yeah, T2 definitely has its own style when it comes to busting through a tight D. The main thing is that you have to be able to switch out your equipment for the situation--jammer and cloak pack, concussion and whiteout grenades, that kind of thing... these items are MUCH more useful than casual inspection would suggest.

I still contend that mastery of the sensor network is right behind aiming and jetting as far as the 'must have' skills one needs to be truly evil in your play. Once you know how everything interacts, you can do some truly evil things with the equipment I listed above. :)