When it comes to the gameplay, there's really a simple question to ask yourself: Did I like the original
Sudden Strike? If the answer is no, then stay far away from
Sudden Strike: Forever. If the answer is yes, then you should most definitely pick the game up, because what
SS: Forever offers is a good deal of the same action that you had in the original game.
The major new content comes in the form of new missions and units. There are four new mini-campaigns, one for each of the British, Americans, Germans, and the Russians. Along with these, there are seven new single-run missions (think skirmishes), and a handful of new multiplayer maps. To go along with all of these new maps, you've got a number of new units of all sorts. The most important of these are the medics, who can heal your troops, and the ability of officers to raise the experience level of the troops around them.
There are also a number of gameplay tweaks. Besides the aforementioned new abilities of the officers, you can have your generals use their binocs to get a longer field of view in a particular direction. And, perhaps even more importantly, you can have your vehicles drive backwards, which can keep your tanks from getting shot in their tender backsides.
For all of these new features, though, Sudden Strike: Forever is essentially the same game that you played when you got the original Sudden Strike. The missions are very unforgiving, it's hard to keep track of all of your units, and the strange mix of realism and strangeness persists. Prepare to rush, rush, rush, after getting your units prepped.