Ok now I understand the function of LOOKUP but i donīt know how to use it to jump to the right loops when the number of shooter changes.

This is how the shooting sequence look like


When there are five shooters, one on each stand they shoot as in the diagram above. and then they move one steep right and the guy on stand 5 move to the stand 1 and the shooting sequence starts from STAND 1 again and so on.... until all shooters have shoot from all 5 stands.

But if there are 3 shooters the shooting sequence will look like this.
1st run
LOOP 1
LOOP 2
LOOP 3

LOOP 6
LOOP 7
LOOP 8

LOOP 11
LOOP 12
LOOP 13

2:e run

LOOP 2
LOOP 3
LOOP 4

LOOP 7
LOOP 8
LOOP 9

LOOP 12
LOOP 13
LOOP 14

3: run
LOOP 3
LOOP 4
LOOP 5

LOOP 8
LOOP 9
LOOP 10

LOOP 13
LOOP 14
LOOP 15

4:run
LOOP 4
LOOP 5
LOOP 1

LOOP 9
LOOP 10
LOOP 6

LOOP 14
LOOP 15
LOOP 11

5:e and last run
LOOP 5
LOOP 1
LOOP 2

LOOP 10
LOOP 6
LOOP 7

LOOP 15
LOOP 11
LOOP 12