Don't think it needs to be a house rule, it's not that big of a deal and it makes realistic sense. All crunchies are trained to take cover in the real world.
From the manual:
Quote:
|
Non-vehicle units with 2 or more MP remaining can now voluntarily take cover to break enemy line of sight at a cost of 2MP by pressing the ‘ C ‘ key. Taking cover especially if close to the enemy is not a guarantee that they will break LOS.
|
In no way does this small feature make the game 'worse' in fact it makes it more realistic and can help save your infantry if they are getting ripped to sherds in the open.
That combined with popping smoke (inf).