wassa was expensive but not completely useless until microing/hoverbombing was nerfed in a ridiculous way.
In the most cases it drops now 1-2 bombs before it dies and gives the enemy team a nice mass boost (u need 2 bombs to break shields).
But in comparison to the excessive costs, u need to destroy lots of important things to balance it.
And then... (!) it doesnt drop a bomb every time.
imo not worth m48k, e780k.