It would be fantastic if you could extract the units from your bunkers (both Friends and yours) so you would not have to lose them every time you wanted to make room.
Terrablast:
Damage: 2000 (x2 due to two shots at once)
Health: 15000
Damage Type: A
rea Blast Range: 200
Fire Rate: 0.6/sec.
Speed: 0.5
Target: anything
Unit Target: All units
Size: 60
Building Time: 35 mins
Cost (activation): 18,000,000 minerals
Activation Time: 3d 12hrs
Cost (generate): 100k coins