Re: [Halo] Onyx Wind [OOC]
Not so much "sign language", but certainly extensive hand signals (like a SWAT or Navy SEAL team). You guys will basically make Innuendo checks at a low DC, and with a circumstancial bonus, when performing such an action amongst each other.
"There's a beast in every man, and it stirs when you put a sword in his hand."
- Ser Jorah Mormont