Now I understand that the rule books says that the minimum force size should be 300 pts and that you can go as large as you want to. But I was wondering if this is generally excepted default size for a force or if people have experimented with larger forces and if so what size force they find seems to work and not effect the game balance.
So far, most of our games have been in the 200-500 point range I think. It's honestly a little early to judge how larger games affect balance as we're still trying to get consistent and comfortable with the rules. Every game is a new adventure. It doesn't seem like there should be an issue, and the only real effect is that a larger game will take considerably longer. But I think that will balance out with better remembery of the rules.
I have yet to play anything larger than 300 pts per side myself. This mostly has to do with the limited amount of models that I have (Battlecry). Also, I'm not one to play with proxies but I have found that with the limited different types of models available for the Zentraedi, anything over 200 pts is just "multiples of the same". Maybe when wave two hits, we will see more interesting lists to open up the Zents at higher point values.
Now i did see that there was going to be a tournament at an upcoming convention that was for 300 pt lists again i know this is still a young system, but it may be an indicator of what to expect in the future
If I get to playing, it will be 100 to 150 point games. Otherwise there are too many Zents on the board to make it much of a fun experience. I also play my wargames on a 4x4, so not much room for all those Zents.
Our group has been playing 2 vs 2 games with 150 points each player (300 a side "standard" size.) It's been working well for us.
You can get two squadrons into 150 points or opt for a single reinforced squadron by adding extras. Having two players helps take pressure off having to coordinate a bunch of units, as well as making the game more social.
We've been doing UEDF vs Malcontents/Zentraedi, and I play UEDF. My partner plays the Valkyrie element and I run a Destroid force, which further simplifies the strategizing. Our games last between two and three hours (closer to two.)
Sometimes a player can get seriously reduced or even taken out entirely fairly early, though. This is the only real drawback to acting this way, I think.