We find ourselves thrown into a level that is filled with Enforcers and Grunts. This level is relatively simple, mostly focusing on fighting enemies in enclosed structures including the tower for which this level is named. Speaking of the tower, we once again get a pointless Biosuit, this time without even Water to excuse the fact that they might have thought it preventing the ability to drown. Beyond that, most of the level revolves around gathering all the weapons (besides the standard Nailgun, which is virtually useless after getting the Super Nailgun anyway). There is a nice flow of connectivity, nonlinearity, and difference in textures through the level. I think this is one of the better levels of the pack, with its biggest flaw being its lighting (most of the level is too dark). Finally, this is the first part of what will become a "two-parter" of some sort, where we find ourselves at an earlier part in the campaign we previously played. Our new goal will be to play the levels in a similar fashion to how this series started in an attempt to make it to the previous "first level" of the pack, Flooded.