I have been playing Captain Steel as my main since obtaining her and she is a BLAST to play!
Pros:
- Excellent high damage ranged attacks
- Mobility
Cons:
- Weak defence skill especially if cornered by Melee chars
- Weak Melee attack
Basic Guide:
Use her mobility skill to escape and move round the map. You can even use it to get close and melee then fire off your ranged attacks for a combo.
Her main attack should be her ranged skill "Launcher Barrage", you would need to aim in the direction on where you want to hit as you will immediately start firing in that direction, which is different from the other Chars.