JimmyT
Keep going! Don't let stage 2 put you down.
I haven't actually attended the selection process but I know a couple of things about the interview/team work part from various sources including here.
Team work:
The group will be given a task where you can demonstrate your leadership and team working abillities. Try to engage in the conversation, not too much because you want everyone to have a say, but not too little because that doesn't demonstrate anything. Be yourself and be confident!
Interview:
The interview is usually a one on one where you will be asked about yourself such as your hobbies and why you want to become a pilot. You will also be asked compentency questions for example, tell me about a time when you demonstrated leadership etc.
Remember, L3 CTS are not here to trick you, just be sure to do your homework before stage 3.
Good luck!