Might benefit the game pretty well at this stage. We have 6 maps. A few new game modes, possibly easy to program, would add 2x more playability to the game, and could possibly use the current maps. If difficult to implement due to current menu and server programming, then strongly consider this in a sequel. Suggestions for Game Modes: Juice Collection Botless, With High Health Shield. Attack Only/Defend Only My Idea for One: This one is similar to Headquarters on CoD, except using Chickey Cantor (or alternatively a static version of him that doesn't move or get grappled). Any map can use this idea, or new maps can be made just for this mode. Chickey Cantor will constantly spawn and respawn, the objective is for each team to kill him the most times, 1 point per kill, with a point and/or time limit. You can put him in different places, favoring different classes, possibly place a few neutral turret nubs around (doesn't have to be one in each place he spawns, just 1 or 2 common spawn points out of 6-10 total ones). Pros themselves can just spawn at the farthest possible point from him, possibly in new spawnrooms or additional spawnrooms or 2-story spawnrooms where each team has a different floor.
Sumo is a must. Also, Hardcore setting for private matches. FF, collision with bots, possibly no pickups but that may be pushing it. And lastly, a Blitzfire. Basically crossfire where the bots get stronger over time and ignore enemy turrets(non pausing at them like in blitz) to make them even more a focus.
Capture the flag. Only bots can pick up the flag. Escort bots to their base, escort bots back. Bots turn around when they grab the flag (only blackjacks and jakbots can do so, jakbots slow down a lot when they have the flag). Territories. Bots needed to capture territories. Three per bot lane. Headquarter-esque gametype. Escort bots to the enemy Headquarter spot (Moneyball). Once bots reach there, your bots stop spawning and the MB is exposed. Once the MB stops, the annihlator goes off against your bots, and their bots spawn stronger. Their MB goes back when their bots hit your own MB (they don't stop at turrets). Then their bots are destroyed by the annihlator and the game continues playing out.