Finally got into modding and decided to post a few of my small mods that I recently made including a replacement for the xcomutil high explosive damage mod which I thought was overpowered.
Calcinite/Deep one terrorists appear underwater - Makes it so that Calcinite terrorists and Deep One terrorists appear on underwater missions in addition to Hallucinoids/Xarquids. Note that this mod is pretty much untested at the moment.
UFO/USO Breeching Charge - Adds a purchasable grenade that does a damage of 200 so it can pierce UFO/USO hulls. The difference is that I reduced the blast radius to 2 annd made it more expensive ($2500 each) for balance reasons. I also changed it to use the same inventory space and sprites as the blaster bombs.
Long Range Laser Cannon - Makes the laser cannon worth using by increasing the range but decreasing the accuracy and damage. Range = 65, Damage = 35, Accuracy=33.