No breaching units in Wargame.
In regiments, since you don't buy units with gained points like in Wargame, you have to take care of your units: no more rushing, more planning. That's what I like in this game. It's still a RTS, so people will try to rush but they may lose a lot of units. I hope in the campaign the lost units will not be replaced each time.
You get reinforcements during the game but you have to choose between 3 sets of units (can be air, arty, cavalry,...), you can't mix them, so it's also a challenge, what did I take to accomplish my mission?
They have a Discord channel and the devs are open to discussion and ideas:
https://discord.com/channels/681523353651249174/750421872776314962