The 4 digit reference is made up of 2 sets of 2 digit numbers, the first number is taken from the Northing and is obtained by reading along the horizontal axis (along the corridor) until you are in line with the relevant grid on the map. The process of obtaining a grid reference is relatively straight forward and the simplest form of grid reference you can give is a 4 digit grid reference. NOTE: On the Arma 2 map, the grids themselves are labelled at the midpoint of the horizontal and vertical axis of each grid, rather than the Easting and Northing lines themselves being labelled, meaning that grid referencing is slightly simpler, however in Arma 3 it is the lines themselves that are labelled. This number, when interpreted properly, corresponds to a specific grid on the map, allowing you to accurately describe a location on the map via its grid reference, which will be a 4 to 8 digit number.

By combining the numbers of the Eastings and Northings we can create what is known as a 'Grid Reference'. These numbers can help you determine how big the grid is in terms of 'real world' distance but they also have another use. All of the Eastings and Northings are labelled with numbers that can be seen on all 4 edges of the map. The horizontal lines which divide the map are known as 'Eastings' and the vertical lines are known as 'Northings'. In the map reading part you saw that the map is divided in grids, the sizes of which can vary. This is skill which will be used almost every time you play and it is therefore highly important to gain a good understanding of at least how to read the map, interpret directions and translate what you see on the map into world that you see in front of you in game. Basic map reading and navigation is one of the key skills which all players should possess when playing Arma.

Arma 3 largest map