Weapons upgrades in long campaign

[Nitram Draw]

I am thinking of trying a long campaign, 60-80 scenarios over 30 years. I know during that time period improved weapons will become available for infantry units. Will I need to 'change' my infantry units between scenarios to get the more modern versions of their weapons or will they automatically upgrade these?

[Griefbringer]

You will need to manually change the units, there are no automatic upgrades provided by the game.

[Nitram Draw]

Thanks.

At least they are generally cheap units.

[Mobhack]

The only way to change something is to do so in the upgrade screen between battles.

Units don't "magically" update, nor will formations adopt a more modern TO&E if one comes along.

[Nitram Draw]

Thanks.