Heroes vs. Aliens

[Mark Skarr]

It really depends on how many xenos there are and what assets are available to the hobos.

If they have a spell that can cure/prevent a xenos implantation then they'll win handily.

If they have access to resurrection magic, then it's going to get messy, and seems more likely to turn into a Genestealer cult from Warhammer 40,000, because it's only a matter of time before magic-wielding xenos appear.

Engaging xenos in melee, as is the primary method for conflict resolution for Hobos, is going to end with a lot of dead hobos as the acidic spray is going to make gooey work of them in no time.

So, short answer, it's probably going to be the xenos winning. The hobos, using metaknowledge could win, but it will be very messy.