For AnyConnect RA Load Balancing which Module to Use GTM or LTM

For AnyConnect RA Load Balancing which Module to Use GTM or LTM. 

I have 2 RA VPN but they are at SAME Data Center. Should I use LTM or GTM  ?

Each AnyConnect VPN 2 different identity cert normally , but if we put F5 Infront of it , what cert will be installed at each AnyConnect Box ?

Plan to use F5 is using load balancing between 2 VPN

For example if 1st RA BOX name is - vpn1.company.com and 2nd one is vpn2.company.com , normally each VPN will have each individual Identity cert on them , but if we put F5 infront of both what cert we need to call from each VPN Config at AnyConnect level  ?