If no timetable is set before 10pm (server time) on the last day, the event will expire.
Always donate your construction parts even if the maximum has been reached, as you won't be able to use them for anything else.
The R5 or R4 will launch the battle, which lasts 30 minutes.
Alliance players can then launch rallies and join the rallies of others.
It is advisable to launch rallies with your weakest and join the rallies of others with your strongest squad.
If you have a 3rd squad: launch rallies with it and join the rallies with your 1st and 2nd squads.
Don't worry about what's shown when you launch rallies: you can participate whatever the power level of your units.
The higher the total damage, the better the Alliance rewards and the more difficult challenges are unlocked.
You'll have access to two rewards:
One based on the total damage you have inflicted
One based on the total damage inflicted by all the members of the alliance, which will be multiplied up to x10 depending on the damage inflicted by the best player.
You can increase your damage by 1% by activating War Fever: to do this, scout on an enemy commander.
The War Fever lasts for 15 minutes, so you'll need to perform another scout to renew it during the event.
Check you points regularly and stop when you reach the Max Individual Rewards level. The pictures below show how to check you individual points.