The principle of this Star Wars game is that Anakin Skywalker was never discovered on Tatooine. This, naturally, has far-reaching consequences in the universe. In general, the events remained the same, however. Events such as the Clone Wars and Order 66 still happened. As did the Declaration of a New Order. There are a number of notable differences, however.
After Count Dooku was
|His death was unintended in this timeline. He attempted to escape the battle of Coruscant, but his escape pod was caught in a crossfire between two capital ships and destroyed. |
Emperor Palpatine didn't find an apprentice until after Order 66. Because of this, Order 66 was not as efficient as originally intended. The Jedi order had more warning and roughly half of the Jedi Order survived Order 66 itself. The following Great Jedi Purge whittled this down to some fifteen to twenty per cent. As a result, there is a considerable amount of Jedi helping the Rebellion.
A year after the Declaration of a New Order, the Emperor found himself an apprentice. A male human who is now known as Darth Vasq. He is known to be both a brilliant tactician and a masterful strategist, while his abilities with the Force and a Lightsaber are above average at best. Darth Vasq was very involved in the development of the Imperial Officer Corps. While the personal abilities of Stormtroopers are still comparable to the original films, their real threat is that they are efficiently commanded and coordinated by excellent officers.
Another important note is that it's not just Jedi use lightsabers. It is not uncommon for Rebel soldiers to be trained with the use of a Lightsaber. On the other side, the Empire employed mercenaries and bounty hunters to hunt down Jedi and their lightsabers often ended up on the black market or in the hands on independent mercenaries. There few rebels (aside from the rebel Jedi) and mercenaries who can go toe-to-toe against force-users in lightsaber combat, however.