These are based of some of the characters I have for the US faction in Battlefield 5, so I turned them into ponies :3
 
From left to right:
 
Zerok:  
Zerok is the leader and rifleman of the group. He is experience in war longer then the rest of the squad, and is a natural leader. He cares deeply for his fellow ponies, and is known for keeping a very cool head and mind, no matter how much pressure he is under. He sees his squad as more then just teammates, he sees them all as his friends.
 
Redheart Cross:  
Redheart Cross is the medic of the group. She is know for her bubbly and snarky/joking personality, and is always one to make jokes and wisecracks, even during grim moments. Redheart always cares about the lives of those around her, and she is very skilled at treating various types of injuries and infections. Although she prides herself on saving lives, she is not always able to save them, to which it devastates her (the joking and snarky comments are a sort of coping mechanism for her)
 
Island Hopper:  
Island Hopper is the shotgunner of the group, and is also the newest/lest experienced member. Although she tries to put on a brave and cool face, in reality, she is actually really nervous and terrified. She’s worried about constantly making mistakes and the heavy toll of the war, and fears that she may end up putting her friends lives at risk because of her nervousness. Never the less, she still cares deeply for them, and would be willing to die for them.
 
Diamond Eyes:  
Diamond Eyes is the sniper of the group. Compared to most of the squad, he is often very cold and distant of everyone, and is most stoic, not really emoting most of the time. What he makes up for in emotions and socialising, he makes up for in deadly accuracy and lethal determination. He might not say much, but deep down, he still has a lot of emotional baggage.