Places, items, peoples - main plot
Points of interest, element not connected with plot
Places, items, peoples - secondary quests
Treasures (chests, safes, buried stashes)
Cemetery – Graves of guardians. Here you'll start your conversation with general Vargas. He'll give you two quests: 1. Find Repeater Units, which Ace had with him (main quest) and 2. Find Ace's journal. Both missions can be completed in the Radio Tower area.
Beside, near the grave is laying shovel which allows you to dig in dirt piles and graves. You can at once try to dig up Ace's grave, but Vargas at the others won't be pleased... When you return to this location Vargas won't be here anymore, so you can dig safely (if you have in your party Angela Deth, make her standing far enough from the grave or else she will turn against you).
Entrace into Citadel – You won't be able to get into, until you'll be done with quests at Radio Tower. However if you've in your team someone with Smart Ass or Hard Ass skill, you can convice guard to give you a nice shotgun "Missisipi Mule" with ammunation. This option is avaiable only at the beggining of the game, so it's not bad idea, to have someone with one of those negotiation skill.
Don't choose suggestion of getting inside by force. Rangers will turn against you and you'll quickly finish your adventure.
Angela Deth – Angela - the character from the Wasteland 1. You can talk to her about what happened from 15 years ago. If you've in your team someone with Perception, then you'll notice her tatoo, about which you can ask. Angela wants to join your party. She's very good at the beggining (high level) but she won't be in the team for all the time, so you'll waste much experience points to her. However she'll make play easier and more pleasant. When you have Angela in the team and you'll go back to Vargas, he'll ask what she's doing with you. If you tell him true, Vargas'll order Angela to stay in Citadel.
"Reserve" guardians – Ashley Brygo, La Roca i Rook. They are "reserve" guardians, which you can join to your team. Mainly they are pretty weak, because they're starting at 1st level of experience.
Trader – Capral Solveig Sefors is the only one who offers armours and ammunation to sell in the first part of the game. You can restock in here until you gain access into Citadel.
Guard Khass Tet – You can give him a spray paint, which you'll find in the Toaster in the Radio Tower area.