Sometimes you need to watch a video of an old man spazzing out while playing a first-person shooter for the first time. If this is one of those times for you, then watch this video.

Some folks invited their 84-year-old grandfather to play 'Halo 4' and 'Black Ops 2' with them, and this is what happened. It's pretty awesome. It's also surprising how little he curses -- we thought that was a universal grandpa thing. Learn something new every day.

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