People i can not stress this enough. At the part where you get to Marmalade start hording aleph from the snipers especially before you deplete his health. The mission ain't done. The last section is going to be utter chaos with snipers, brutes, stealers whatever. When marmalade starts sucking from pig (at 100%) that is when the snipers pop up. And with all that aleph the final part is a breeze. Hell make sure everyone has 5 stacks just to be safe.
I repeat.
1. Wait for pig to reach 100%
2. Start killing snipers for aleph
3. ? ? ?
4. Profit