Siege game mode
Defenders start in a castle with turrets and factory and shit. It contains an object of interest, such as an immovable APC containing a VIP.
Attackers spawn a few kilometers away. Their objective is to destroy the object of interest.
Each defender gets a fixed amount of cbills at the start of the match, such as 120k. Similar to ToS, they cannot earn more for the duration of the game, so it is crucial to not spend it all immediately on the shiniest mech.
Attackers assault the base in waves. First wave sees each attacker spawn with 50k, second wave with 60k, and so on. Basically SA-style cbill increase.
Each wave lasts 10 minutes. A wave is over if all attackers are dead or the objective is destroyed. The game is over after 5 waves or if the objective is destroyed. Now teams get swapped. The new attackers have to beat the previous attackers' time for destroying the objective.
Many details are yet to be worked out. This game mode would be a great showcase for the diversity of our assets and highlight the different roles they can shine in. Attackers can plan different paths or tactics for their assault. Ground slogging in tanks, running battle in fast mechs, massed aerial assault on exposed parts of the castle and stray defenders, or soften it up with artillery first? Employ brute force, or distraction tactics while an Anubis tries to sneak dat shit? Since the first wave is likely to fail, what do you do to maximize damage to the defenders to make successive waves easier? Defenders on the other hand need to git gud at not taking too much damage during a wave (no cbill reinforcements) and working in concert with their castle, its cover, turrets, etc. Hold them off with LRMs and gauss, or let them get close and open up with assault mechs and tanks carrying AC20s?
Secondary tasks could be added, such as capturable bases outside the immediate reach of either team, that enable turrets or TAG towers/AMS towers. This way the defenders would need to dispatch some units to hold this base, else they risk losing their turrets or suffering artillery bombardements due to lack of AMS coverage.