Can you clarify where you’re looking when you say “When it calls for…”?
Someone’s army list?
A suggested list on a boxed set?
One of the list making utilities like Army Builder or Easy Army?
Generally, the LMG gunner and loader come from the total strength of the squad.
ie:
Squad of regulars comes with NCO and four men (all rifles) for 50 points
Add 3 men with rifles for 30 points (total now 80 points, NCO with rifle and 7 men with rifles)
One man replaces rifle with LMG for 20 points, one man becomes loader (total now 100 points, NCO with rifle, 2 man LMG team, and 5 men with rifles).
.
