Imperial Dimension Neptunia mod for Star Wars: Empire at War: Forces of Corruption

Im glad your enjoying the mod and the lore in it.
The Mandalorian faction that helps the rebellion on Mandalore is the Mandalorian Protectors faction, and their story is similar to legends. The Empire established an occupation of Madalore in order to mine beskar, with a revived Death Watch faction working with the Imps. Ampotem Za was the Imperial in charge of the occuptation and he had enslaved alot of mandolorians for crimes against the Empire and sent them to the mines. The Mandalorian Protectors see this and dont like this. Thus in the years leading up to 0aby, the Mandalorian protectors began launching raids to try and remove Ampotem Za and his Imperial forces of Mandalore. In 3aby Leia crashed on Mandalore and was captured by Ampotem but was rescued by Mandalorian protecter leader Fenn Shysa. Leia then helped Fenn rally the enslaved Mandalorians to rise up, kill Ampotem, and destroy the Imperial presence on Mandalore. Some time after finally freeing Mandalore from Imperial occupation, Fenn Shysa would become the leader of Mandalore, and his Mandalorian protectors would offically agree to fight with the rebellion in around 4 aby (particapating in battles such as endor 2, mindor, nagai conflict, etc). Then around 21aby, Boba Fett takes over as leader of the Mandalorian protectors after Fenn gets killed.

> Do cpu know about the sith

In IDN, the cpu charecters are force user not affiliated with either jedi or sith, whose worlds are strongly aligned with the Galactic Empire and support Palpatines vision. If measured most of the cpu would draw on the light side of the force tho exceptions like Iris Heart/Neogear/Kurume would draw on the darkside.
If you mean weather or not they knew about the sith organization and ancient sith Empire, they did as the sith wars were part of galactic history, and sith were seen as rogue jedi (some insane some evil some mad some seeking order). Histoire knew at least some history of sith and thought of them as extinct. Cos Dashit (the moff who replace histoire at the Gamindustri moff role) did collect sith artifacts.
At the very least in galactic history, ancient Lowee (perhaps planetune as well but lowee existed on the galactic space longest of the 4) was part of and a willing supporter of at least some of the Sith Empires from galactic history.
If you mean "did the cpu knew palpatine and vader were sith", then no.
Tho there are 2 exceptions. Iris Heart was part of the Imperial Inquistor corps, and one of the many Imperials recalled to Byss by the Dark Empire (with iris heart meeting her end when the rebels blew up Byss).
The 2nd exception of coarse Kurume who hails from a parallel universe in which the vong looked like they would end up winning (with them winning battle of Ebaq, and the imps/nr being pushed back to the deep core). Kurome had ended up finding one of Palpatines vaults, studying the Holocrons inside (such as the Telos sith holocron), and acquiring the gehaburn blade from there (which works by draining the living force out of her) which helped slay many Yuuzhan Vong warriors.

> how was the gcw

Alot of the events play out similar to the way they did with legends. The main difference is after the Battle of Endor, the Imperial Remnant ended up controlling more systems (specifcally in the south west of the galaxy in the area between the edge of the 19th sector army and the unknown regions; while still moff of that region Histoire was part of setting up alliances with the surrounding systems such as Tera and many others). This area would also contribute troops/ships/resources to Thrawn and the Dark Empire.
Planetunian Warlord Cos Dashit was more so influencial over that area and took over the moff role from Histoire. His goal was to expand that faction to encompass what used to be the 19th sector army, and Dashit had also ordered expansion and conquest into the unknown to harvest more resources. This was happening while the New republic was focused on beating back the main Imperial remnant forces.

> what plans do you have for future updates

Alot. Expand on the lore, add more worlds with new maps and with bigger gc's, add more unit types, rebalance space, and release a clone wars era submod called "Ultradimension Neptunia Clone Wars". That plus a wiki for the mod and its lore.

It means you have shaders turned off, and its something that affects the vanilla game also as EAW doesnt like Intel HD integrated graphics.

Go into OPTIONS > video > ADVANCED > SHADER DETAIL, and make sure SHADER DETAIL is set to HIGH