Hello Nmp,
The Beta will only have the one Strike, here are the beta activities.
[quote]Campaign: Homecoming
When launching the Destiny 2 Beta, players will first create a Character and play through the campaign mission Homecoming.
Fireteam size: 1
Matchmaking: Unavailable [/quote]
[quote]Crucible: Countdown and Control
Players will have access to two Crucible game types, each featuring a specific map.
Countdown: Attack and Defend objective gametype with Elimination rules. First team to 6 round score limit wins the match.
Control: Teams compete to control objective zones which grant additional points when defeating opponents. Reaching the score limit or having the highest score by time limit wins the match.
Fireteam size: 1-4
Matchmaking: Available [/quote]
[quote]Strike: The Inverted Spire
Players will have access to one Strike activity. Players are placed into a Fireteam to complete objectives and proceed through Beta content on the planet Nessus.
Fireteam size: 1-3[/quote]