Type "LOS" during a Mission to reveal where everyone is.
Access All Missions:
Edit the SWAT.INI file in C:\SIERRA\SWAT2\ under the [Missions Played] box. You will have access to all 30 missions in the Quick Missions box. Make it look exactly like this:
[Missions Played] SM1=1 SM2=1 SM3=1 SM4=1 SM5=1 SM6=1 SM7=1 SM8=1 SM9=1 SM10=1 SM11=1 SM12=1 SM13=1 SM14=1 SM15=1 TM16=1 TM17=1 TM18=1 TM19=1 TM20=1 TM21=1 TM22=1 TM23=1 TM24=1 TM25=1 TM26=1 TM27=1 TM28=1 TM29=1 TM30=1