If the scramble is called an "Ambrose," it means that handicaps are used in play, with a fraction of the total handicaps of the group members serving as one handicap for the group.
For example, if it's a 2-person scramble, the handicaps of the two players are added together and divided by 4. For a 3-person scramble, divide by 6; for a 4-person scramble, divide by 8.
The arithmetic produces one group handicap which is used during play.

