Question about concentrated fire

By player243504, in Tide of Iron

Its been a while since i played and i had a question regarding concentrated fire.

Surrounding fresh units can participate in a concentrated fire at half of their stats.

Now why would i do this? What is the logic?

Thanks in advance for the help.

The reason for combining fire is MORE DICE!

More dice helps defeating cover/armor.

More dice kills faster.

More dice are less random.

You also get more bang for your buck - i.e. more firepower for your action. To order a unit to concentrate fire is 1 action. To order another unit to concentrate fire is a 2nd action. But if I combine fire, I can order multiple units to fire as 1 action thus maximizing firepower per action.