Soldiers no longer needed to deliver bomb by hand. It is exciting time to join the military!
Bombers are the ninth tier of bullet industries. A crit bonus of at least 2.09 M, if not 8.38 M, will be needed to afford them. Also, a 1 B discount will be needed to complete the pre-automation mission at Rank 97 in a reasonable number of manual crits due to the insane fortress cost of 1 CC. Finally, 5 M or more comrades per second is recommended to get the 500 B comrades required to unlock them in addition to unlocking everything else in a reasonable amount of time.