Aye it does go for 2 days,the campaign is 13 missions but as for story progressing it's sort of fast. In my mission the admiral of the PVD Hope explains that the Terrans have moved
of forces to Antares, and our spies in the Terran Alliance have informed them of a new terran operation, called Thresher.
They have a bit of warning before the Terrans actually begin, so the first few missions of the campaign are about the Vasudans consolidating their forces, then about half way threw is when the Terrans actually begin the campaign, sort of a blitz campaign, where their moving fast with everything they got, just trying to break threw to the Vasudan node. Once they blockade that they can mop up the vasudans left in Antares cause they won't be able to get support and begin attacks in the vasudan system.
It was a plan to end the war. Antares was the closest system to their homeworld so they tried to push threw there.
Because of the spies in the alliance the vasudans were able to prepare and even though they still had a tough fight the vasudans didn't really win neither did the terrans, they both just ran out of firepower and it became a stand off in the system again.
The begins the great war campaign
Oh and in this campaign you play as a vasudan.
