Here are some description attempts, again feedback is awesome.
{hist} Historians
{hist_descr}
Having spent most of their time pre-war reading of ancient conflicts, they're in their element! Not wanting to sacrifice style for something as unimportant as practicality, they remain in their tweed jackets and corduroy trousers. Acquiring swords and shields these form a decent early heavy infantry unit.
{hist_descr_short}
An early heavy infantry swordsman unit, useful to deploy fairly strong troops in large numbers.
{soc_sci} Social Scientists
{soc_sci_descr}
Encompassing a wide range of academic disciplines, these units mainly consist of students highly critical of how the world is run and how bad people are in general. In battle they form small blocks of infantry armed with spears and wearing skirts and roll-necked jumpers. Since they’re rather critical about organisations in general they tend to act better as defensives troops.
{soc_sci_descr_short}
An early defensive unit armed with spears, handy if charged head-on by cavalry.
{b_natsci} Biological Natural Scientists
{b_natsci_descr}
Students who have decided they love living things become biological natural scientists. With a love for genetic modifying anything they possibly can, it was almost inevitable that they would start on horses to try and improve their cavalry capabilities, especially for speed! They ride into battle wearing lab coats and armed with clamp stands to smash their enemies to death!
{b_natsci_descr_short}
A light cavalry unit who ride to war on genetically modified horses, they are useful for routing missile units or chasing enemies from the field.
{eng} English students
{eng_descr}
These students spent most of their time with their head buried in books, hunting for meaning in literature. Even with the outbreak of war they can’t tear themselves away from their books and insist on having one strapped to their belts. Known for an eclectic dress sense, they march into battle in woollen coats and pink scarves. In battle they act as a slinger unit, pelting their foes with rocks from a distance!
{eng_descr_short}
A slinger foot unit who throw rocks at their foes, surprisingly effective against lighter infantry.
{eng_scorp} Engineer Scorpions
{eng_scorp_descr}
Engineers have a tendency to fiddle with machinery, or build it if they don’t yet have one! These engineers are keeping things simple and have built a basic piece of artillery known as the ‘scorpion’. It only needs one operator and fires bolts, up to 4 bolts a minute in the right hands, each one capable of piercing shields and armour.
{eng_scorp_descr_short}
The basic artillery unit, built by the ever inventive engineers, useful against tightly packed infantry.
Equally, could we try to fit geographers in somehow? Possibly a movement bonus?