The 257th Fleet (a.k.a The Colossus) contain these member of the fleet:
1.USS Montana
Looks:

Personality: Cool, energetic, sometimes reckless, not too annoying and a good person.
Ship:

Armament:
+AA: 75 Phalanx CIWSs, 52 Bofors 40mm
+Secondary:20×127mm Mark 16
+Main:4×3 406mm Mark 7
Weapon:

2.IJN Yashima
Looks:

Personality:cold, look scary and angry,
like not to talk, only say is his name and 
greet.
Ship:

Armament:
+AA: (like Yamato)
+Secondary:"many" 100 mm (3.9 inch) L/65 dual-purpose secondaries
+Main: 4x2 510 mm (20.1 inch) L/45 main guns
Weapon:

3.HMS Thunderer
Looks:

Personality: A knight-like person, loyality and friendship is his priority, thinking about two step ahead, calm but sometimes too much.
Ship:

Armament:
+AA: 7×6 40mm Bofors Mk VI, 8×1 Bofors Mk VII, 12×2 40mm STAAG, 4×2 20mm Oerlikon Mk V, 8×2 134mm Mk I
+Secondaries: 8×2 134mm Mk I
+ Main: 4×2 457mm Mk II
Weapon:

4.KMS H-44
Looks:

Personality: Always serious, hated when getting annoyed by Montana, not to mention that he is shy when talking to girl making him cute.
Ship:

Armament:
+AA: 28 × 3.7 cm and 40 × 2 cm
+Torpedoes: 6 × 53.3 cm
+Secondary: 12 × 15 cm and 16 ×10.5 cm
+Main: 8 × 50.8 cm
Weapon:

Note: Four of them have sword, you can see in their looks