You are correct about those two characters Yautja - true, but the other main character - Kelly, the army brat woman, is absent here, and she's the other half of the main cast (this film's Ripley, if you will, while Morales would be the Schwartzenegger). Obviously she will meet up with Morales at some later point. But I think the "bad acting" griped about in this scene can be attributed to the "expendables" (certainly acid face boy!). What I meant by my statement is that I don't think this scene is the best representation of the casting choices - this certainly isn't "I Know What You Did Last Summer" or one of those teen flics - this scene probably plays out pretty early on in the film, and just happens to have a lot of young meat fodder for Wolf and gang.