This is one of the great under-appreciated campaigns on Simplici7y. It has new weapons, graphics, and enemies. There is a focus on fair and fun combat. There is less switch hunting and puzzle BS than average, though to be fair I did use the Eat the Path plugin. Phoenix Falling has a whopping 48 levels!!!

As the S7 description states, there are a few porting issues. Some enemy animations look strange, and some monsters and scenery are transparent. But these are minor quibbles. The only major issue I encountered was on the My Vision secret level: the unfinished terminal cannot be exited after logging in; force quitting the game is the only way out.

The campaign features some pretty innovative tricks. At one point you're fighting while on board a moving train! In another area there's a lot of water with sharks in it, and the sharks will attack you! In another level you've got to protect a hunter ally that's being attacked by a huge enemy force. Another mission is to find a jetpack so that you can reach the high elevations necessary to fully explore an enemy-controlled facility. There's a lot of variety in the level objectives. The story is adequate, although I do wish the devs had made use of a spellchecker. If you're looking for a fun Marathon 1 campaign this is worth checking out!