It goes without saying that the next Avengers movie is going to be epic. But the superheroes uniting across the Marvel Cinematic Universe won’t be the only ones to get in on the fight against Thanos.

A new casting call from Project Casting reports that the Marvel Studios movie codenamed “Mary Lou” is looking for actors to play soldiers for filming next month.

Avengers: Infinity War has gone under the working title “Mary Lou” during its production and though principal filming wrapped last month, Marvel Studios typically plans for extensive reshoots for each of its film.

Plus, Marvel is shooting the next crossover film and the untitled Avengers 4 movie back to back, meaning they could probably bring some actors back around for pickups if its needed.

Avengers: Infinity War also put out a casting call for emergency workers like EMTs and first responders, so this scene might go along with that one.

Filming is taking place in Atlanta, and they’re looking for actors who can fit this description:

Soldiers: Central Casting is looking for men over the age of 18, any ethnicity, to portray soldiers of various rankings. MUST be clean shaven and willing to receive a military haircut (high & tight). No larger than 44 coat and 36 waist to fit provided uniform. You should be physically fit as moderate exercise may be required.

There’s no question that the upcoming Avengers movie would be packed to the brim with action sequences, but it’s interesting that we’re starting to glean more details about the epic scope of the conflict.

How will a squadron of soldiers be able to contend against the might of Thanos with an Infinity Gauntlet, flanked by his Black Order? Will the Chitauri or a similar army of aliens be involved? Or are they just cannon fodder against the Mad Titan?

Hopefully we find out more when the first official trailer for Avengers: Infinity War finally debuts for the public.

Avengers: Infinity War is scheduled to debut in theaters May 4, 2018.