[PC][Early 2000's] 3D Chibi Turn-Based Fantasy Strategy game characters can upgrade to different class

Platform(s): PC

Genre: Strategy, Turn-based, fantasy, anime,

Estimated year of release: Probably from aroud 2000 to 2006.

Graphics/art style: 2.5 or 3D probadly, because nostalgia make the game in my mind feel like a Crysis graphic.

Notable characters: I can remember some character final upgrade was an Eagle Knight or a red knight with halberd or a half Octopus.

Notable gameplay mechanics: Turn-based on hexagonal grids.

Other details: First battle is on a meadow.

Thanks for any help!