Update Huron vehicle

[DartRuffian]

Description

Swapped the "huron" vehicle to be the Rho medical crate, fixed prices for LAAT variants

Changes

• Swapped "huron" vehicle to Rho crate.
• Fixed LAAT/c not costing any ammo.
• Fixed ammo/fuel costs being low for LAAT/i MK2

[DartRuffian]

Whoops, made this a PR to the main repository, not my fork.