Firstly, in this rule the B-heptomino is a c/98 orthogonal ship that moves in a very strange, spin-y way:

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`x = 3, y = 4, rule = B2k3acijr4ijqy6i7c/S2aek3ijnqr4it5n`

o$2o$b2o$2o!

These B-ships can be combined into OMOSes, and what is astonishing is how many different ways this can be done; this variety of OMOSes gave the rule its name. There are at least ten known OMOSes, at various different periods:

p600:

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`x = 12, y = 3, rule = B2k3acijr4ijqy6i7c/S2aek3ijnqr4it5n`

2obo5bo$b3o4b3o$2bo5bob2o!

p800:

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`x = 7, y = 10, rule = B2k3acijr4ijqy6i7c/S2aek3ijnqr4it5n`

bo$3o$ob2o5$3b2obo$4b3o$5bo!

p800 (2):

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`x = 14, y = 5, rule = B2k3acijr4ijqy6i7c/S2aek3ijnqr4it5n`

2o8b3o$o3b2o4bo2bo$4bobo3bob2o2$4b2o!

p800 (3):

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`x = 19, y = 19, rule = B2k3acijr4ijqy6i7c/S2aek3ijnqr4it5n`

7bo$6b3o$5b2obo3$16bo$16b2o$17b2o$16b2o2$b2o$2o$b2o$2bo3$10bob2o$10b3o$11bo!

p800 (4):

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`x = 13, y = 4, rule = B2k3acijr4ijqy6i7c/S2aek3ijnqr4it5n`

10bo$2obo5b3o$b3o5bob2o$2bo!

p1000:

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`x = 9, y = 9, rule = B2k3acijr4ijqy6i7c/S2aek3ijnqr4it5n`

b2o$2o$b2o$2bo2$6bo$6b2o$7b2o$6b2o!

p1000 (2):

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`x = 14, y = 14, rule = B2k3acijr4ijqy6i7c/S2aek3ijnqr4it5n`

8bo$7b3o$6b2obo2$b2o$2o$b2o8bo$2bo8b2o$12b2o$11b2o2$4bob2o$4b3o$5bo!

p1200:

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`x = 13, y = 3, rule = B2k3acijr4ijqy6i7c/S2aek3ijnqr4it5n`

2obo6bo$b3o5b3o$2bo6bob2o!

p1400:

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`x = 12, y = 4, rule = B2k3acijr4ijqy6i7c/S2aek3ijnqr4it5n`

9bo$2obo4b3o$b3o4bob2o$2bo!

p1970:

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`x = 20, y = 20, rule = B2k3acijr4ijqy6i7c/S2aek3ijnqr4it5n`

b2o$2o$b2o$2bo14$16b2obo$17b3o$18bo!

And the B-ship and OMOSes aren't the only interesting things this rule has to offer, either. There's a p112 RRO with a multiplicity of four:

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`x = 53, y = 19, rule = B2k3acijr4ijqy6i7c/S2aek3ijnqr4it5n`

b2o42b2o$2ob2o39b2ob2o$o3bo39bo3bo$bo2bo40bo2bo$2b2o31b3o8b2o$35bo2bo$

34bo3bo$34b2obo$35b2o2$50b2o$49bob2o$48bo3bo$48bo2bo$39b2o8b3o$38bo2bo

$38bo3bo$38b2ob2o$40b2o!

A natural 50c/100 ship, which is actually very close to the c/98 B-ship, as in one phase it is just a B-heptomino plus a crucial spark:

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`x = 7, y = 5, rule = B2k3acijr4ijqy6i7c/S2aek3ijnqr4it5n`

4bo$4b2o$5b2o$4b2o$obo!

The c/98 ships can be combined with each other to double the overall period:

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`x = 12, y = 10, rule = B2k3acijr4ijqy6i7c/S2aek3ijnqr4it5n`

2bo$b3o$o2b2o$2o2bo$4bo$9b3o$8bo2bo$11bo$7bo$7b2o!

Or to quadruple it:

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`x = 38, y = 34, rule = B2k3acijr4ijqy6i7c/S2aek3ijnqr4it5n`

2bo$b3o$2o2bo$o2b2o$o7$32bo$31bobob3o$31bo2bo2bo$30b2ob2o2bo$8bo22b6o$5b3o$4b

obo2b2o$3bobob2obo$2b2o3bo$3b3obo$7bo$5b2ob2o$6b3o$7bo3$21b3o$21b4o$19b2o2bo$

18bobo$18bo$18b2o$20bo!

They can form non-trivial, interacting combinations large enough that apgsearch can only classify them as ov_p98:

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`x = 16, y = 16, rule = B2k3acijr4ijqy6i7c/S2aek3ijnqr4it5n`

3b2o2bo2b5o$obo2bobob4o$ob5obobo$4ob3o4bo$bobobo3b3obobo$bo4bo2b3o2b2o

$2b2o2bobobo2b3o$2b5o2bo5bo$2bobob3obobo2bo$4ob2obo2bo2b2o$obobobobobo

b3o$2b2obob2o2bobo$b2ob3o6bo$2bo5b2obo2bo$ob4o3bo4b2o$2o3b3obo2b3o!

As well as c/98 rakes that emit 50c/100 ships:

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`x = 16, y = 16, rule = B2k3acijr4ijqy6i7c/S2aek3ijnqr4it5n`

2b3o3bobo$b2o2b3o3bo3bo$obo6bo2b4o$2b2ob3obo4bo$obobobobo2bobo$2o6bo2b

5o$o2b2ob3o3b4o$bob9ob3o$2b2o2b2ob7o$5ob3ob2ob3o$3o4bob4o2bo$b3obobo2b

2o3bo$2bo2bo2bo6bo$8bobo2bobo$o2bo2bob2ob3o$obobo3bo2b2o!

There are also numerous lower-period orthogonal ships, such as this 2c/4:

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`x = 8, y = 5, rule = B2k3acijr4ijqy6i7c/S2aek3ijnqr4it5n`

5bo$2ob4o$b2o3b2o$6bo$3b3o!

These related 5c/11s:

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`x = 41, y = 17, rule = B2k3acijr4ijqy6i7c/S2aek3ijnqr4it5n`

36b2o$2b2o31bobo$bobo30b2obo$2obo31bobo$bobo31b3o$b3o$40bo$40bo2$40bo$

40bo$b3o$bobo31b3o$2obo31bobo$bobo30b2obo$2b2o31bobo$36b2o!

This 6c/12:

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`x = 12, y = 10, rule = B2k3acijr4ijqy6i7c/S2aek3ijnqr4it5n`

b3o4b3o$o2bo4bo2bo$o10bo$b2o6b2o$3bo4bo3$5b2o2$5b2o!

This 8c/16:

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`x = 18, y = 15, rule = B2k3acijr4ijqy6i7c/S2aek3ijnqr4it5n`

b2o12b2o$obo12bobo$o16bo$obo12bobo$b2o12b2o6$5b3o2b3o$4bo2b4o2bo$3bo3b

o2bo3bo$4bo2bo2bo2bo$4b3o4b3o!

And this 14c/28:

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`x = 6, y = 15, rule = B2k3acijr4ijqy6i7c/S2aek3ijnqr4it5n`

2o$b3o$4bo$bo2bo$2b3o2$3b3o$5bo$3b3o2$2b3o$bo2bo$4bo$b3o$2o!

There are no known non-orthogonal ships, however, and the only low periods for which oscillators are currently known are p2 and p6.

Altogether, this is a highly unusual and interesting rule, worthy of more attention and research!