I know it's been asked and I know some will argue saying "it cannot be done because of cpu requirements" or other silly stuff...Well, they're poor excuses.
Just check out the rest of the games in the market to what they're capable of nowadays.
Some AI infantry, troop carriers, tanks or even airships could provide great inmersion to what Mechwarrior World should really be, despite their insignificance or minimal damage capabilities could cause a great impact in the gameplay attracting many more new players for what this game deserves.
Making an attractive game improves its life and trying to do its best could help a lot conserving veterans and bringing new players. I'm starting to get bored with the same stuff and I don't play as much as I did years ago.