The suicide bomber unit.
Equipped with explosive breast implants, and intestines shorten to accommodate explosive devices in their bellies.
Wombs are all removed before mission, and are deposited for transplant into suitable receivers. They fly into enemy fortification or tank and presented their breasts to the enemy, they always choose their most prestigious favourite bras, to make their last looks memorable, despite very few survived footage of them before explosion. Ending in bits of nipples flying toward enemy, the blast is enough to turn nipples into deadly shrapnel.
I got some inspirations from Deviantart. Been a while I browse something on there and got new ideas. :P This is what I found, some of you might interest. https://www.deviantart.com/666markofthebeast666/art/Human-Missile-826989970