How to create a list of units to show only those moving in the next 90 days?

kharacol 
I did a small sample file based on the image you've provided. Assumed that your column B in master tracker sheet has a formula of '=Column F-Today()'

in baseball card sheet, I used filter function to return the selected arrays based on the dates that are projected for the next 90 days master tracker sheet. '>0, <=90'

=FILTER(
  CHOOSE({1,2,3},
    Table1[MSC],
    Table1[Unit],
    Table1[Country]
  ),
 (Table1[Days from HSAD]>0) * (Table1[Days from HSAD]<=90)
)

 and inserted the 'total units' on the title of the table

="Forces Projected next 90 days
" & "Total Units: " & ROWS(FILTER(CHOOSE({1,2,3}, Table1[MSC], Table1[Unit], Table1[Country]), (Table1[Days from HSAD]>0) * (Table1[Days from HSAD]<=90)))

to convert/export the baseball card sheet to PowerPoint. you need to use a macro.

Sub ExportToPowerPoint()
    Dim pptA As Object
    Dim pptP As Object
    Dim pptS As Object
    Dim ws As Worksheet
    Dim rng As Range
    Dim lastCell As Range
    Dim img As Object
	
    Set ws = ThisWorkbook.Sheets("Baseball_Card")
    Set lastCell = ws.Cells.SpecialCells(xlCellTypeLastCell)
    Set rng = ws.Range("A1", lastCell)
    
    rng.CopyPicture Appearance:=xlScreen, Format:=xlPicture
    
    On Error Resume Next
    Set pptA = GetObject(class:="PowerPoint.Application")
    If pptA Is Nothing Then
        Set pptA = CreateObject(class:="PowerPoint.Application")
    End If
    On Error GoTo 0
    
    Set pptP = pptA.Presentations.Add
    Set pptS = pptP.Slides.Add(1, 11) ' 11 = ppLayoutTitleOnly
    pptS.Shapes.PasteSpecial(DataType:=2).Select ' 2 = ppPasteEnhancedMetafile
    Set img = pptA.ActiveWindow.Selection.ShapeRange
    
    With img
        .LockAspectRatio = msoFalse
        .Left = 0
        .Top = 0
        .Width = pptP.PageSetup.SlideWidth
        .Height = pptP.PageSetup.SlideHeight
    End With
    
    pptA.Visible = True
    
    Set pptS = Nothing
    Set pptP = Nothing
    Set pptA = Nothing
End Sub

the macro will find the last cell with value (bottom-right) in order to set a range to convert and copy the sheet content into an image and will paste it in PowerPoint.

sample file > @kharacol.xlsx