Natalie let loose, a stream of bubbles near her rear, as she kicked hard, hissing in the rebreather hard as she looked as the shallow waters that they had dropped into. It was only about 20m deep, but still, the illumination was half decent, the storm beginning to slowly pass though the area, but not that it mattered to Natalie. They had a fairly long swim, but she was muscular, being surprisingly strong. Under any armor, apart from her pretty face and her curves, she was built like a female tank. Her legs and arms were proportionate to her height, not just long, but thick, almost tree trunks in how they dominated. Beyond her two big bosoms, she had a six pack that seemed very well toned, though hard to spot, and her body, whilst elegant and beautiful, was powerful in ways that represented she took no shit. She was ex-Spetsnaz after all- and that brawn was backed up by a very ruthlessly efficient mindset. One that turned her into a killing machine more potent than her weapons alone did. Hissing into the rebreather, as a school of fish swam by, the warm tropical waters reminding Natalie that sharks were also around but not likely to fuck around with them today. Besides, Natalie knew she wasn't going to die that way, fate would never allow it. Swimming on, her legs thundering, the two black suits moved through the water with a certain grace, as they came closer, and closer.

Within fifteen minutes, Natalie saw the beginnings of what was the naval base, as she looked back at Victor, hissing hard through her rebreather.
"Through here. It's going to be tight." Natalie said, as she looked left, almost in a crouched position, as she checked the AS VAL, chambering an underwater-compatible magazine, as she looked to him.
"And since you have a fart fetish, you stay behind me." Natalie added, chortling over the radio, as she knew that at this stage, Victor wouldn't get the effect of the heat, but the pressure would hit him, and boy, did Natalie know what she was doing when she had some force in her gas. The piping seemed ancient, but the gate was rusted, and covered in coral in places. Taking a small oxy-acetlene torch from her back, she began cutting the grate with ease, quickly ripping it off, as she took her AS VAL back into one hand, and her Dive Knife in the other. The pipe was thin, but it led as a filler for the dry dock within the submarine pen, completely broken now, with all the pumps removed. It fit Natalie and Victor just- and Natalie knew that teasing Victor was a full time occupation, alongside killing people.
"In we go." She remarked, as she took her gloved left hand, with the knife in it, finding a spot to wriggle in. She kicked hard, letting the momentum take her, as she stopped her legs. Her sixth sense kicked in about where Victor was relative, and she knew this was going to be good.
"Straight on...hmm...it's going to be a wet one!" Natalie said over the comms, cackling like the devil, as suddenly, the pressure and force rocketed her forwards, as bubbles of her gas displaced water, the flurry right to Victor, as she kicked, still laughing.
"Oh, you should have never said you enjoyed them. You're going to get plenty more later...." Natalie said in an evil way, aware that this was perhaps a true revenge for when Victor hit her on the rear. Oh, she always had a way, she thought to herself.

Swimming on, through the narrow pipes, Natalie stopped, as she then heard walking above. They had gone up and she could see through the grate, the feet of one man. He wasn't talking. She couldn't stand in the pipe, but she could do something different. Inhaling hard, breathing in air at a rate most humans could only dream of, she knew the grate wouldn't be that strong. It was bolted in two places, and it moved when he stood on it, as he had initially heard. It was too narrow for them to get out here, but Natalie wanted to stir the Hornet's nest before going through. Putting her feet up against the top of the pipe and taking two hands on the grate, dive knife in her right, she saw the other man walk away, as this soldier stayed, over the small grate.
"Let me have this one. Quiet."

Natalie yanked, and the grate, which was so poorly attached from the top, came apart, the whole structure going, as the man fell, straight into the water. Natalie didn't even flinch as the man, arms outreached, was so shocked and unaware, he didn't know how quickly his life ended. Natalie thrust the Dive knife right by his neck, throwing her hand forward onto his mouth and suffocating him, pinning him down in the narrow tunnel, the man kicking and looking right into Natalie's goggled eyes, unable to see beyond the black tint as she looked right into his, with a real feeling of hatred and adrenaline combining. It took less than thirty seconds- the man must have taken water in his lungs, due to the panic, but it didn't matter. Taking the ripped out grate, she put it back up, and swam forward, dragging him and having to kick even harder. And it was one less enemy. Perhaps they'd look at the grate and moan that it was broken, but they'd never know their friend was sitting in a flooded pipe.

"Mind the body." Natalie simply said, as she kept on kicking, hoping Victor was on her back. Swimming towards another grate, she cursed, looking beyond it. It was concreted off- like the US Navy had done so to seal the passage off. But the good news was, there was a passage upwards, a little underwater but poking out into something out. It was a way out, Natalie thought to herself, observing. 
"Fuck, this should be going to the submarine pen itself, but we can't go through. Dammit. Wait a second- I have a possible idea." She added, looking around at the coral in the pipe, as she bung a green chemical light forwards, the cracked tube emitting light, as she took her Oxy-Acetelene torch out again, quickly cutting through as she did on the entrance. Natalie was using up almost the rest to cut the rusted, yet thick bars, before pushing them out the way, and swimming through. The pipe seemed to be concreted here- but there was an access point, for some sort of maintenance perhaps beyond the grate. Natalie looked up, the darkness only illuminated by the green chem light, a smirk on her face as she looked around to Victor.
"Get that grapple hook ready. There's just enough room for us both here. Fire it and and set it to pull if you think it's got a stable link, otherwise, we'll crawl up it." Natalie said, as she swam upwards a little into the hollow, where a few destroyed ladder rings sat at the top- the rest had rusted and broken off, and meant that the only way up was a rope. It seemed to go into some sort of elevator shaft- a maintenance one, rather than a normal one. For carrying pallets of ammunition, rather than groups of people. A metal grated door, probably to stop people falling into the water, sat where the lift would usually go- the lift itself disabled higher in the shaft, from their perspective still in the water. Perhaps another grate covered this way down- but it wasn't there anymore. As Natalie shifted a little, emerging from the water in the very narrow shaft, she took her goggles off, and the rebreather out of her mouth, as Victor prepared the line. They would have to then perhaps keep climbing up the lift shaft's cable, and perhaps after getting higher, do some damage from above, getting an oversight on what was what from an observation room in the pen. It was a nightmare, but they were undetected- and Natalie, knowing full well what damage they could do, knew that if they hit the enemy correctly, then almost any enemy standing here would be toast before twenty minutes would pass.