Tom Clancy's EndWar
63 Achievements
65-79h
Weapon Master
Use Secondary Attack for the first time.
32.6%
How to unlock the Weapon Master achievement in Tom Clancy's EndWar - Definitive Guide
As you win battles in either the single player campaign or Theatre of War, you will earn command points that you can use to upgrade your battalion. On a mission select screen press to enter the barracks, you'll first need to earn enough command points to purchase a secondary ability. Tanks have a HESH shell that I used quite a bit. Transports have some cool surface-to-air rockets. Riflemen have a sniper ability. Purchase one of these upgrades. Important: Some abilities require a unit to be of a certain rank before it is able to use it. The required rank is shown with the upgrade's details.
Once you have a secondary attack ability purchased, simply use it in any game mode; Skirmish, single player and Theatre of War all work. The trophy will pop immediately on completing the requirements for it.