The first scenario in SK1 is Retaking Vierville. It only has squads, half squads, and leaders - no support weapons, no guns, no vehicles. That scenario has been played a million times, so there are probably some good playthrough videos out there.
The first time I played this scenario (solo), it probably took me two weeks, because I was constantly looking up rules. Now, with an experienced player, we could probably finish it in two or three hours without looking up any rules. What was daunting and confusing at first will become second nature.