There are tons of mechanics that don’t make sense from a simulation perspective but are fun and add mechanical depth to a game. A very common one is the ability

There are tons of mechanics that don’t make sense from a simulation perspective but are fun and add mechanical depth to a game. A very common one is the ability to carry multiple rifles in-combat. But generally the movement in-combat is accelerated and allows for higher control, while the penalty of getting hit is much lower.