The Operational Art of War, Vol. 1: 1939-1955 чит-файл №1

Ships can impede movement along coastal roads: Move your task force next to
the road and let it sit there. This is especially useful in the Sicily, D-Day,
and Korea scenarios.

Massed artillery bombardment can do the work of a conventional attack if you
don't have the necessary offensive troops. For instance, the Italian artillery
at Tobruk can batter the British garrison during the Crusader scenario, even
though the accompanying infantry probably isn't up to storming the fortress
outright. Similarly, artillery and carpet bombing by B-29 bombers can damage
the North Koreans stacked up around the Pusan perimeter in Korea until the
Americans can counterattack with ground forces.
                               
A skillful delaying retreat, necessary in many scenarios, requires careful use
of mobile troops. Sometimes you may need to dig in and fight for dear life,
but more often you only need to slow the enemy, either to beat a deadline or
to wait for reinforcements. When delaying, leave your troops in mobile mode
and don't dig in. Your defenders should have as many spare movement points as
possible and should remain in minimize-casualties mode. You can compensate for
the lack of fortifications by locating units on rough terrain or in urban
areas. Staying mobile allows your troops to retreat without taking too much
damage. If you're worried about engagement, try to plan ahead to have a clear
retreat path for your units. If you can, leave a second defending unit behind,
thus ensuring a path and also providing support so that if the attackers
follow up and hit the now retreated unit, your second defender can take the
brunt of the attack. Against a human opponent who's in a rush or suffering
from bad reconnaissance, use this technique to give the attacking units a
nasty surprise.