Different between Forest and Urban fighting is Distance and Reaction time.
In Forest you have longer distance = "Longer Reaction Time", kit need to be made after that purpose. Example; Nice to have a water bottle pouch with a cocking unit inside for hot meal, you have time to make it if you spot the enemy on a longer distance.
In Urban area you have shorter distance = "Shorter Reaction Time", kit need to be made after that purpose. Example; Nice to have a water bottle pouch with a cocking unit inside for hot meal, but you don't have time to make it if you spot the enemy on a short distance.