Complete the following achievements to unlock Microsoft Gamerscore points.

Achievement	How to unlock	Points
Drei Vier Grenadier	Kill 4 enemies with the Trench Raider Elite Class	50
French War Hero	Spend 30 minutes in-game as French Republic Medic	50
Maître d'Armes	Perform one kill with each of the 5 primary Weapon Assignments weapons	100
Saint Chamond Operator	Kill 25 enemies with the St Chamond Heavy Tank	50