Red Alert 3 for Playstation 3 - Please Help Me Find A Deal.

[wikoogle]

By force attack, do you mean attack move? If so, simply double tap the x button and they will kill anything on the way.

You don't need an engineer to repair a structure.

Go to the command menu, and use the scroll wheel to go to symbol taht looks like a wrench and says repair mode. Click that, then click on what you want repaired.

Engineers have other roles...

They capture oil derricks which gets you tons of cash.

They take control of enemy structures so you can sneak one in during the middle of an attack and take your opponents mcv or war factory and screw them over.

When loaded into a multigunner jeep, the jeep becomes an uber repair unit that repairs all other vehicles including itself around it. I used this often during battles.