Well, my ideal solution would be to limit how much your team can destroy your structures as something that took 15 minutes to build can easily come down in less than 15 seconds. A block based solution idea I had though would also make it harder to just wreck some structures that the other team has, but not impossible.

Basically, create a far tougher block than the default block. They are more expensive, perhaps five standard blocks per use, but have far greater strength. Since they are expensive, they would not be used as primary building blocks, but spaced out as support columns so that when bricks are knocked out, these keep it from all crumbling down in one piece.

For instance, I build guard towers around the intel, usually 10-20 units tall. You get a better heads up on the enemy, but usually your own team comes by and digs the bottom out of the tower. If we had a near indestructible block, I would build a single column as support and put everything around that.

As the game is now, there's not really a point in building anything too interesting as it isn't going to survive your team or the enemy. It's best to just hop around hills shooting at each other, and dig the occasional hole.

Caveats:
There would have to be a distance required from the intel so nobody walls it in with support blocks.
The same would have to be done for the tent, just in case a griefer found it.
Players would have to be unobservant to get trapped, and can just dig down anyway or kill themselves, so that's not a huge problem. Blocked passages are similarly easy to dig around.

No.

Dear oh dear, another coveluted and unnecessary solution to an easily fixed problem.

Stop mid game switching, problem solved. If anything, building ridiculously complex and stupid fairy tale castles that more often than not aren't even near the intel and thus useless should be DISCOURAGED. The game is not baout building pretty buildings, it's an objective based WW1 inspired shooter, not "Minecraft with guns" as many people seem to think it is.

What Mr.Wrinkle said.
All this game need is to stop people from changing teams mid-game. Also a way to figure out the IDs of all the Deuces making votekicking easier.

Building large towers and forts usually isn't the best strategy anyway. Small and solid bunkers (usually built into the mountain-side) is the safest and best methods for taking out the enemy, and they are harder to grief too!

Just for the record, I think this game is more of a Battlefield (Vietnam, BC2) + Minecraft.

I don't think I've ever used a guard tower unless it is the enemies, and infact it is working against your cause - I've racked up plenty of kills camping in an enemy tower before either getting snuck up on or having your own team collapse it for safety.

If you want to be useful build some bunkers and cover on the frontlines - it would be MUCH more appreciated.

Well, buildings are not to be much stronger because of WW1-type gameplay, sandbags etc.

But there is something not really wrong in the idea of stronger blocks (but not for buildings!): one should not be able to dig in rocks so easily as in dirt or sand... why not have a layer of dirt on top of a layer of rock:

- dirt digable as easily as today

- but rock, underneath, much stronger (turns into dirt blocks when dug)

Something weired about today's gameplay is that there seems to be too much tunnels; stronger underneath rock should limit a bit these tunnels...

my 2 cents

PS: oh, someone already thought about it... http://goo.gl/mod/0UVV

PS2: oh, someone else also: http://goo.gl/mod/vM3S