In Iron Grip: Marauders, you need a hero to start any kind of battle, and to lead smuggling missions. You start the game with two heroes, Emilia and Vancer.
Heroes determine the amount of deployment for a battle. This affects the number of units a captain can bring into a battle. As a hero gains levels, the deployment capacity increases.
The Hero Page
You can access all the information about your heroes by clicking on their icon under the hero tab on the left. These icons also let you easily see what your hero is doing.
A) Hero Name and Rank
B) Current Hero Mission Status - Shows what mission your hero is currently carrying out.
C) Hero Statistics - Battle history and current combat statistics.
D) Hero Level and XP Progress - This shows the hero's current level, how much XP they have, and how much they need to reach the next level.
E) Start Mission/View Location Button - If the hero doesn't currently have a mission, you can click on this to get a mission. Otherwise it will say View Mission, and it will take you to the hero's current mission.
When your heroes get to Level Five, they will achieve Veteran status. Some heroes (but not all) will gain a new attack or ability. For instance, at Level Five Vancer gets an extra shotgun turret attack, similar to that of an Atavar Tank, while Emilia gets a special armor-piercing shot ability.