I continue my drawings of Sombra soldiers with the advanced soldiers :
 
Shadow trooper: Ponies who got their body destroyed and whose mind got bound to this world by dark magic. 
Not being hindered by a material body anymore, they can move at incredible speed and melt into shadows. 
As a side effect of losing their physical form, they became incredibly weak to magic and although their body is immune to any physical harm, they will vanish if their armor is broken ; for these reasons they are used in assassination mission rather than on the frontlines.
 
Crystal bomber: These soldiers are specialized in the use of explosives, their armor is extremely resistent and can even take some magical hits before breaking, this allow them to bring destuction behind the lines of the enemy. 
Although their armor is very tough, their back is unprotected to lighten its weight, for this reason they are always escorted by two crystal mage, making sure no one takes advantage of their weakness. 
They are also sometimes used as living shields, forming an unpenetrable line to protect other soldiers.
 
Crystal commander: As their name implies, these ponies command entire groups of soldiers, as they have to take decisions the mental control placed on them is lighter but renewed every days to prevent them to brak free; most of the time they are former crystal gards to take advantage of their combat experience and tactics.
 
Basic soldiers: >>1285136 
Elite Soldiers: >>1285186