ISC - What to buy

[Berf]

The box is a very good choice. It provides a well-balanced team, able to cope with anything your opponent can come up with
If you want to play with more points than the recommended 100 points, you can go with one 40-10 combo (Hadakauma or Kami + one of the little drones), depending on your strategy (beat'em all style with the Hadakauma or Try to kill me style with the Kami). Or take the 25-25 path for support, choosing between the Ashigaru (Defense), the Konchu (Weakening) and/or the Ubume (specific killer (low PSI)). But be warned that not all the Missions are balanced when you play with more than 100 points.
For a standard 100 points ISC team, mixed with the starter, I advise trying the Komuso (control) and/or the Rikishi (defense, but quite multipurpose really, if you know how to play it). These two are my favorites, and a team with them and the Ronin (for brawl) can be really effective. You can also go with a 25 + 10 combination as a replacement of a 35 fighter. For exemple the Ubume and the Gaki can be very scary, as the Gaki lowers the enemy PSI and the Ubume attacks can be performed with a PSI difficulty rather than a VIG difficulty. The Gaki can also restrain enemy actions and this can be a good combination with the Ashigaru, making your team a very defensive one, good for keeping objectives.
My personal choice : Komuso, Rikishi, Gaki, Ashigaru. These four a very good, but require some skills as they are not the most effective in close-combat.