Since our minds are instantly copy/pasted in new bodies when we die, we're not bound to any one body. There is no reason that we can't have genetically engineered bodies designed and specialized for specific roles; I don't mean like a superman, but something not even human like.

We could have like 6 arms to hold more guns.
We could have bodies with leg setups similar to a tiger beetle (fastest animal for its size), and we could be like a centaur insect.
For oceanic planets, we could have bodies similar to giant octopuses.
We could also have bodies like pterodactyls designed for souring in the air.

I know Earth creatures are not relevant or known anymore, but these are just examples. EVE has its own flora and fauna for engineering lessons.

Crazy body types could further be augmented by dropsuits designed to fit them, and modules to maximize efficiency for whatever role.

I hear Jovians are really into genetic modification, I imagine they'd do something like this if they ever needed ground soldiers.

EDIT: If our new bodies go horribly wrong like with the Jovians, it doesn't matter since they are disposable and replaceable. Battlefield assets (like genetically engineered bodies) likely have to be thoroughly tested to make sure it doesn't mess up.
Manufacturers would thoroughly test the bodies anyway to make sure they don't anger and get abandoned by their customers.

EDIT 2: Regarding incompatibility issues, it keeps coming up in the thread and I don't want to keep addressing it again and again0 so I'll add it here. Human brain parts essential for personality and memory remain in the creature clone, but with new parts are bioengineered for motor control and sensory processing of the nonhuman body. If you were advanced enough to bioengineer an entirely new creature, you may be advanced enough to bioengineer brain components and solve the neurological compatibility issues.