Just keep 2-6 soldiers in each base. Leave them there in combat training, arm them with toxiguns, devastator cannons, and the usual, since toxiguns are worthless against human raids. Surround the Access Lift & and Hangars with Advanced Security Stations. Unless the enemy is packing some serious explosives, they're not likely to survive devastator shots from ALL directions.
Before the attack, put your engineers/scientists in groups together, your base soldiers in one (or two) groups. When the battle starts, evac all the scientists/engineers to the farthest areas. Place your soldiers just behind the security stations, get into the prone or kneeling position, equip a weapon, and pick the invaders/raiders off from a safe distance. There's a good chance that the enemy will be too occupied dealing with the security stations to notice your soldiers.
You could even use Dimensional Launchers to bomb the access areas if you wanted to.
|