Battlefield sign language

OK guys, stack up. They said not to wait up. So you reckon that the rainbow sprinkles are the way forward with the donut? Absolutely, 'cause then you get the different textures between soft donut and [unintelligible]... Shhhhh! Would you two get your asses over here right now? Did you lose something, Sarge? Drop something, Sarge? This is supposed to be a stealth mission. Why? Aw, never mind. You're here now. I need you to breach that door. Oh, oh, charades. I know this. It's on the tip of my tongue. Is it a musical? Whoa, hang on. Hang on. No, it's gotta be a... It's a book. No, no. Ok, sign language 101. Stack up? No, I'm..I'm..I'm pretty sure that that means "one syllable." Ah, just shut up. Breach that door! [Together] Ok Uh, should I still be stacking?