Batman / Aliens 1 and 2 [complete]

Batman / Aliens
Batman meets a handful of mercenaries when he has to travel on a "mission of mercy" near the Guatemala and Mexico borderline. Into the jungle, the group finds a spaceship and later discovers they have to prevent an Alien outbreak, besides saving themselves.

Batman / Aliens 2
In 1927 an explorer discovered something frozen in the Alaskan ice and he brought it home with him to Gotham City where he sealed himself in a lab. It remained undiscovered until a present day construction crew broke it open to find the explorer torn apart.

Dr. Fortune, an army scientist, soon gets wind of this and hatches a plan to combine the aliens with DNA from Arkham Asylum inmates to create a xenomorph/supervillain hybrid capable of keeping the superheroes in check.