Just picked up this game real cheap and I'm ploughing me way through it but I've a bit of a prob. I can't find out how to call for assistance when using those sensor goggle thingies. I can select them when a tank or helo is offering to take targets and I can highlight the enemy units, but how do I get the helo or tank to actually attack 'em? I've tried hitting every key on the kb but still nowt happens, and I can't locate a the appropriate key in the options. Any help would be appreciated. Otherwise, quite enjoying this game, just wish the guns were a bit more effective.