[quote=@Double]
[@Crimson Lion] What are the exact rules for changing Gunpla in WARS Format?
[/quote]

If you abandon your mech or its destroyed you need to wait a minute before relaunching from ship or map border. 

If you park your mech in ship you can switch immediately.

If you park and hide it outside of the ship it will take a minute to switch.

I think Ill add more details later