Px4 Handgun!!
I think you need to get an A Rank on the Missle Area to unlock Tribal Sheva.
If I remember correctly,
Sheva(Tribal)
Longbow(infinite ammo), Grenade Launcher(Nitrogen Rounds), 5x Incendiary Grenades, 5x Flash Grenades, First Aid Spray.
Honestly, ang naa-unlock ko pa lang eh Chris(BSAA, Safari, STARS), Sheva(BSAA), Jill(BSAA), Wesker(Midnight).
Kung paano:
1. Chris (BSAA) at Sheva (BSAA), unlocked by default.
2. Chris (Safari): Rank A, Village
3. Chris (STARS): Rank A, Experimental Facility
4. Jill (BSAA): Rank A, Public Assembly
5. Wesker (Midnight): Rank A, Mines
Ang pinaka ayaw kong stage is Mines.... you've guessed it... Reapers.