Per 
SCP-XXXX during an oration.
Following Incident XXXX/1, SCP-XXXX is to be considered missing. All containment procedures are to be archived until recontainment of SCP-XXXX.
Archived Containment Procedures: SCP-XXXX is to be given ample food and water supply. SCP-XXXX is to be given one pipe to smoke per day. SCP-XXXX is to undergo therapy sessions twice weekly. SCP-XXXX is not to be permitted within 10 meters of any telemetric equipment.
Description: SCP-XXXX refers to one Christmas Island Red Crab (Gecarcoidea natalis). SCP-XXXX is capable of producing a low-frequency vibration from its right claw, which allows it to alter the wavelength of communication equipment. These waves typically create a total jam in equipment, though SCP-XXXX's vibrations can only affect radio equipment. SCP-XXXX prefers the name "Captain Crustacean", or "Captain" for short. SCP-XXXX is capable of high-level thought and communication, frequently discussing conventional military tactics and discussing a "battalion" it used to serve with.
Note: SCP-XXXX was recovered following a total shutdown of Foundation communication equipments during a regular patrol. During situation analysis, no technological failures were noted. Patrol vehicles reported hearing a string of curses, before noticing SCP-XXXX on top of a tree trunk. SCP-XXXX was contained, and brought to Site-31 for analysis and interviews. SCP-XXXX refused to communicate for 3 months, prior to Incident XXXX/1.
Related documentation can be found below.
Incident XXXX/1
Interviewed: SCP-XXXX
Interviewer: Researcher Klatz
Foreword: SCP-XXXX refused communication until it smoked a tobacco pipe prior to conversation. Following procurement of a pipe, SCP-XXXX ceased producing jamming vibrations.
<BEGIN LOG>
Klatz: Hello, SCP-XXXX, my nam-
(SCP-XXXX expels smoke towards Klatz and begins shouting, waving its claws furiously as it snaps at Researcher Klatz.)
SCP-XXXX: OI, LISTEN HERE YOU LANDLUBBER! MY NAME IS CAPTAIN CRUSTACEAN, AND YOU WILL ADDRESS ME AS SUCH! NOW, WHAT DO YOU SAY AGAIN? OR DO YE WANNA DANCE THE HEMPEN JIG?
Klatz: My apologies, Captain. My name is Researcher Klatz. Mind telling me about your days in the military?
SCP-XXXX: That's much better, young un. I give no quarter when it comes to respect. Ye understand?
Klatz: I do, I do. But can we return to the topic at hand: military?
SCP-XXXX: Aye. (SCP-XXXX takes a long smoke of its pipe. Production of jamming waves cease.) Tis true, I once lead a most glorious band of men. The Crab Corps, we were called. I still remember them. We were a dozen in number. (SCP-XXXX appears to wipe away a tear.) Till that one fateful day, we led reconnaissance. Hidden behind enemy lines in the dead of night, we'd scuttle. Aye. Mans-o-war, we were indeed.
Klatz: Pardon me.. what day? Psych evals tell me you mention running the "beach line" as a frequent point of anxiety.
SCP-XXXX: Aye, they be right. It was the dead of night. We were on a mission to infiltrate a local shark base, collect some good ol' info. Razorhand suggested we take another route, one closer to the city. See, one of our members, Scuttlebutt, may Poseidon rest his soul, had just joined that there night. If me memory serves me right, twas his first night. Scuttlebutt was blind in an eye, so Razorhand had done it out of the goodness of his heart. Alas, that was our first fatal mistake. (SCP-XXXX falls silent, taking a long inhale of the pipe.)
Klatz: If this is distressing, I can stop, we can request another psyc-
SCP-XXXX: Nay boy, this is my story to tell. I can still hear their screams. The clack of their claws. Big Red, 7 Legs. All of them. Screaming out, and you just can't help them. Tis a terrible sight, laddie. Truly terrible. We begin our mission strolling past the town. We narrowly miss being attacked by a furry, masked bandit, a swooping black feathered dragon, and many more terrible creatures that thar be. Poor Pokyback was taken by that cawing menace. We lost no one else, but we saw him be taken to Davy Jones' locker, right in front of our eyes. The dragon ate him in front of us. He died so we, nay, so I could continue. We give no quarter, but the world gave none back. We pressed onward. Eventually, we came to a large temple, to us, it seemed. As the leader, I ordered our crew to head on. Towards the temple, the one labelled "The Boiling Crab." Twas all my fault. All of it. We came upon the kitchen for the temple, all 11 of us left. They took all of them. I ran to a locker, and hid myself. I thanked Nereus himself for granting me such protection, though it still chained me heart to hear them. A tap-tap as the butcher tested Salmonskin, then ripped his legs from him. "Captain! Captain! Help me!" he cried. It did not stop the butcher with the mushroom cloud hat, nay. It did not. Then it was Beadyeye, he was split down the middle. He got no time to say any speech other than "Long live the Corps," before both he and his words were cut off. Then it was the rest of them. Razorback, Longlegs, Oneclaw. All of them. As I left, and snuck out like the coward I was, I could see them. The limbs, the eyes, the claws of my comrades. My friends. Those I'd grown up with. Twas a deathly sight. Reconnaissance by the flying fish told me they were served on a bed of rice, with a nice white wine. A tasty way to go out, most certainly. ((Despite possessing no tear ducts, SCP-XXXX begins to wail loudly, puffing the pipe as it does so.)
Klatz: I.. I see. I'd like to recommend a follow up evaluation in terms of your psych health.
SCP-XXXX: (Laughing loudly, it wipes its 'tears' and points the pipe at Klatz.) Oh laddie, dead men tell no tales. But I am not a dead man. My corps weren't the only ones, may Poseidon bless their souls. Did you think I was alone? Blimey, every captain needs a crew. (SCP-XXXX clacks its claw, producing its jamming frequency once more. The video feed cuts to static, before returning. SCP-XXXX is gone, and a large hole is detonated in the southern wall. SCP-XXXX can be seen retreating to a nearby tank, dropping its pipe, before leaving. Neither the tank nor SCP-XXXX have been recovered.)
<END LOG>
Note: Following SCP-XXXX's disappearance, the following card was found inside SCP-XXXX's pipe. The method by which it inserted itself into the pipe is as of yet unknown.
WE HAVE WAITED IN THE WATER FOR FAR TOO LONG
SUCH IS A NECESSARY EVIL
WE ARE SORRY IN ADVANCE
- MARINE CORPS
