Contains the following modes:

• Endless Duel - No AI, players respawn when killed(no brains), one unit each
• Endless Onslaught - Players respawn when killed(no brains), one unit each. AI drops units periodically depending on difficulty
• Endless Onslaught(build) - As above, but preceded by a building stage

Features:

• Respects faction choice(e.g. you'll only get dummy/browncoat/whatever units/guns)
• Players get one main weapon and one sidearm
• AI additionally has a chance to get diggers
• Higher chance to get a light infantry unit

It says the file is damaged when you try to open it.

mod files are sometimes damaged due to lack of internet connection, or other purposes, those other purposes i dont not know because i have never had problems with files being damaged i only found them damaged when internet is down

Very cool game modes. I sometimes play with my friend. Good job mate!