Sometimes... Idk for A28, but in older releases it sometimes worked when I restart/re-login/re-host.  I see there's no "STUN" option anymore, too? Idk how Starcraft 1 / Bnet and ShieldBattery works perfectly and not 0AD.  Whenever I host, someone types "bete i can't join"... Idk how many people have this issues but this is priority #2 (lag/game performance when higher population is reached - is priority #1).  I'll just close 0AD and play other RTS now.

Hey, how long do I need to wait until I see any replays?

There is another idea for using infarty units on ships - Naval Boarding (capturing the ships).  l 

Not much different from today, where it's either a Cavalry rush in the first 5 minutes, or boom fest until you both max out and attack with masses of CS. Champions are strong, but they are also very expensive. You will need to expand in order to continue making them after your first wave. Maybe not on Mainland balanced, where you have 2 full Metal mines and a couple smaller ones near your first CC. Perhaps that is not "balanced", but what do I know. Even now, fights rarely happen in this period as there is no economic incentive to. You just hurt your economy, when you should be booming. That is what your opponent is doing, and he will have more units by the time your mid game attack comes near his borders. Boom fest in AoE2 can be stopped by Cavalry raids in the mid game. You will be behind if you haven't walled properly. In 0 A.D., walls are more expensive, slower to build and there is no proper wall snapping. How will you defend your 100+ Civilians without an army, before your champions are ready?

Civilians become better lumberjacks after the first wood upgrade, and better miners after the second mining upgrade. Citizen Soldiers are not economically viable anymore and training them puts you behind. So the optimal game plan is either hyper aggression and attack the opponent after a few minutes so they could not wall / build defenses yet, or super defensive and tech to P3 and get to 100+ Civilians before you train only Champions. If you want AoE2 rage forest where there is instantly a lot of fights, then 10-30 minutes of boom, then fighting with endgame units it will be great. If you want fights between late P1 and early P3 to happen it sounds like an awful change.