My novel take place in a world where the civil war in Ukraine escalates to a Third World War after a terrorist attack (dirty nuclear warhead) in Kiev.
This war is ruled by Private Military Companies which fight for the Coalition or the Block, in very delimited areas called War Zones.
Due to a rapid increase in anti-aircraft technologies, the sky is cleared of almost all aircraft, except a few helicopter-drones (which are very vulnerable to almost anything on the battlefield). An aerial assault or stealth aircraft is out of question, even at very high altitudes.
On the ground, the infantry fights with ExEc (combat exoskeleton, very similar to those seen in Elysium) and ExAc (exo-armor, like StarCraft Marines ones).
There is also a vast range of tanks-drones. Almost all wheeled vehicles are no more human manned.
The Weapon of this Third World War is the Battle-Mechanopod (or Mecha).
First Gen of these war machines are more like walking tanks : powered by a diesel motor, 45 feet tall and manned by five or six crew member.
Thanks to the fusion reactor technology, Third and Fourth Gen of Mecha are more like walking fighter jets : agile, fast, two pilots and equipped with a Magnetic Rifle.
First Gen and Second Gen Mechas were unable to adapt their plating in time to resist to Magnetic Rifles and their main canon shell to these new targets (3rd and 4th G-Mecha plating laugh at HEAT and APCR). Eventually they almost disappear. Only poor PMC and militias still using these relics from the past.
My story follows the journey of a crew on-board a heavily modified First Gen Mecha. They will cross the Ukraine in one direction and then in the other, while trying to stay alive and avoid provoking an international diplomatic incident.
Does my world sound coherent to you ? Did I miss some details ?
PS : My English is poor, I'm a french so-called writer.