troop specialization

rather than making hundreds of different troops that are similar in stats but look a few pixels off, I suggest making the lab more complicated and allowing some options for upgrading the troops that we already love... like giving more or less dps, hp, speed, or even a change of favorite target... of course there should be a default for noobz that cant think for themselves, and also there should be limits for power gamers like me lol... Specialization of troops would make the high costs of the lab more worthwhile and it would add some fun and competition for the more serious players!