What is attracting the attention of ships that wave 4 are:
Tie Phantom - He has included a pair of target lock. Since it does not have this action in your action bar. (Fire Control System - the ship does not need to have target lock action?)
Tie defender - It comes with a evade token. He hasn't this action in your action bar.
E-wing - does not have the action of boost in your action bar, but the astromech (R7-T1) in certain circumstances allows the ship (any ship) equipped to take action to boost.
There is a huge flexibility in the actions of each ship for the upgrades. That is who is leaving the wave 4 interesting for me.
How will the relationship action bar x actions?