Question about infantry assaulting tanks

[Mustang]

When an infantry unit assaults a tank with a satchel charge, what is that supposed to represent? Somebody charging toward a tank and trying to pile explosives on it before he gets run over or the tank moves away? Even if you get someone brave enough to do this, and it would take a Medal of Honor recipient, the chance of success is almost zero. Same thing versus enemy infantry- you can't just charge up to an enemy soldier, put a bomb on him, run away, and detonate it. So is that what the game is representing by allowing infantry to assault with satchel charges?

And also about all the other forms of assaulting tanks. Whenever the enemy assaults the front armor of my heavy tanks, like M1s, they seem to kill it. How could an RPG penetrate the front armor of an Abrams? What does tank assault represent in the game?