Exiles, Vol. 1 #13A

Another Rooster In The Henhouse, Part 2
The Weapon X and Exiles teams of reality-hopping super-heroes meet, and combine forces to liberate a child from a mutant detention facility. After the Tallus clarifies that they must then kill the child, the teams square off against each other, the Exiles (joined by Sabretooth) defend him, and Weapon X plans to destroy him and move on.
Release Date: 2002